1. We have added a Gift Upgrades feature that allows you to gift an account upgrade to another member, just in time for the holiday season. You can see the gift option when going to the Account Upgrades screen, or on any user profile screen.
    Dismiss Notice

The meaning of demographics

Discussion in 'Civ5 - Strategy & Tips' started by pi-r8, Oct 2, 2010.

  1. pi-r8

    pi-r8 Luddite

    Joined:
    May 1, 2006
    Messages:
    2,511
    Location:
    Babylon
    I'd like to know what all the numbers in the demographics screen mean, since this game doesn't give a lot of info on how you compare to the other nations. Here's what's available:

    population:based on the population of your cities, however it's weighted towards big cities. One big city is worth a lot more tn several small cities. I'm not sure how it's calculated exactly.
    crop yield:The sum of all food production in your empire (not food surplus)
    production:The sum of how much each of your cities is currently producing
    gnp:total income (NOT profit. You can be breaking even or even losing money, but still have a large gnp. Says nothing about research or culture)
    land:Number of land tiles within your borders times 10,000.
    soldiers:Based on army strength. Only military units add to this, and more advanced units count for more. It's Possible to have 0 soldiers.
    approval: based on happiness, not sure how it's calculated
    literacy: based on the ratio of science to population, but again i'm not sure how it's calculated.
     
  2. Giant Dwarf

    Giant Dwarf Chieftain

    Joined:
    Jul 24, 2010
    Messages:
    87
    Location:
    Chicago
    I'd bet the happiness stat is based on your net happiness. I'm in a. Game right now where I'm dead last in that stat, and that's because I've -20 happness.
     
  3. pi-r8

    pi-r8 Luddite

    Joined:
    May 1, 2006
    Messages:
    2,511
    Location:
    Babylon
    well sure, but what's the formula? how much happiness do you need to be at 100%?
     
  4. saraid

    saraid Chieftain

    Joined:
    Sep 27, 2010
    Messages:
    16
    Some data:

    Prince difficulty, Huge Map, 90% approval, 10 happiness, 390000 population according to demographics screen, 17 population in cities.

    I don't see anything obvious jumping out as "oh yeah, I'm 90% of that".
     
  5. Nunya

    Nunya Warlord

    Joined:
    Sep 30, 2010
    Messages:
    270
    In my current Ottoman game I am generating 43 :) and 36 :mad: (net 7 :)) and my approval is listed as 81%.

    In an earlier game as Greece I at one point had 141 :) and 129 :mad: (net 12 :)) and approval was 96%.

    I think I see a patern. Approval seems to be 60% + (3% * net happiness). This also fits saraid's data (60% + 30% = 90%).

    In my Greek save I have 15,868,000 population in demographics and the populations of my cities are: 16, 16, 15, 14, 14, 13, 11, 10, 10, 8, seven cities with 7 pop, 6, 5, 5, 5, 5, 4, and 4. Total population is 210. And I realize this is too big for making sense out of it, but it will be good for testing whatever formula we come up with.

    So I laoded my Iroquois save and here I have 382,000 population in demographics and my two cities are sizes 7 and 6.

    In a later save from the same game it's 2,110,000 population in demographics and cities are 11, 11, 7, and 7.

    I just started a brand new game. Demographics list 8246 soldiers and all I have is my warrior. Later building a scout brough my soldiers to 10,198.

    Approval is 87% which fits base 9 Happines with no :mad: generated by number and size of cities (before settling). I also see that the highest happines is 96% so apparently on king the AI gets a +3 bonus to happines.

    After settling my population in demographics is listed as 1000. With city size 2 the population is listed as 6000. At size 3 it's 21,000. Size 4 is 48,000. Making a settler and ploping down a second city brings that to 49,000 population. So apparently at least the effects of individual cities are added together linearly. Size 5 seems to be 90,000 people and size 6 is 150,000. That means size 7 must be 232,000 population (based on my first Iroquois save).

    That should be plenty of data, but I don't see a formula at the moment.
     
  6. aatu

    aatu Chieftain

    Joined:
    Nov 1, 2001
    Messages:
    29
    Location:
    Finland
    If those figures for the city sizes 1-6 are right then the population formula could be

    n*(n^2/2+3/2*n-2)

    So with city size is 5:
    5*(5^2/2+3/2*5-2) = 5*(12,5+7,5-2)=90

    It matches for sizes 1-6 otherwise except for n=1 which is ok.

    For 6: 150
    For 7: 231
    For 11: 825

    231+150 = 381, so this one is of by one.
    825+825+231+231 = 2112, and this off by two.

    But for that 24 city empire it's way off: 16041 vs 15868.

    But maybe this is a good start. :)
     
  7. Lyoncet

    Lyoncet Emperor

    Joined:
    Dec 20, 2009
    Messages:
    1,676
    Location:
    Minnesota
    Wow, given that at least in America presidential approval usually hovers in the 40-50 range and Congress is having a good day if they break 25% approval, the citizens in Civ are really lenient! Someone, tell Nancy Pelosi to build more Colosseums!
     
  8. erragal

    erragal Chieftain

    Joined:
    Sep 17, 2010
    Messages:
    12
    If you have a huge empire and you're hovering around the happy/unhappy line (or even just below it) you'll be in the 50/60% range. Doesn't seem that off to me.
     
  9. Nunya

    Nunya Warlord

    Joined:
    Sep 30, 2010
    Messages:
    270
    More data:
    size 8 = 337,000 population
    size 9 = 469,000 population
    size 10 = 630,000 population
    size 11 = 823,000 population
    I missed 12
    size 13 = 1,315,000 population
    size 14 = 1,618,000 population
    size 15 = 1,963,000 population
    size 16 = 2,352,000 population
    size 17 = 2,787,000 population
    size 18 = 3,271,000 population
    size 19 = 3,806,000 population
    size 20 = 4,394,000 population
    size 21 = 5,037,000 population
    size 22 = 5,738,000 population
    size 23 = 6,498,000 population
    size 24 = 7,321,000 population
    size 25 = 8,207,000 population
    size 26 = 9,160,000 population
    size 27 = 10,181,000 population
    size 28 = 11,273,000 population
    size 29 = 12,436,000 population
    size 30 = 13,675,000 population
    size 31 = 14,990,000 population
     
  10. pi-r8

    pi-r8 Luddite

    Joined:
    May 1, 2006
    Messages:
    2,511
    Location:
    Babylon
    wow good detective work, Nunya and aatu!
    Looks like the only one left to figure out is the literacy stat (unless someones wants to work out how many soldiers each type of unit is worth).
     
  11. Uncle_Joe

    Uncle_Joe Prince

    Joined:
    Sep 9, 2005
    Messages:
    481
    Literacy appears to me to just be the % of the tech tree you have researched or somewhere close too it. As a partial quick test, I got a Great Scientist and checked my Literacy rate. I popped a tech with the Scientists and then looked at the Literacy stat again and it had gone up a few points. Nothing else in my empire had changed.
     
  12. WaKKO151

    WaKKO151 Chieftain

    Joined:
    Sep 29, 2008
    Messages:
    71
    Location:
    Right here bud.
    still laughing at this.
     
  13. Smote

    Smote Emperor

    Joined:
    Aug 23, 2007
    Messages:
    1,170

    Uncle Joe is correct.

    Literacy increases with each technology, and never decreases. I think it is #researched techs/#total techs. Some ancient age techs don't seem to increase literacy, however.
     
  14. kamex

    kamex Emperor

    Joined:
    Sep 13, 2008
    Messages:
    1,272
    Location:
    UK
    I've found this also, it doesn't seem to consider your beakers per turn, this is more noticible if you beeline some routes, leaving lots of 'cheap' techs unresearched. :)
     
  15. Yzman

    Yzman Deity

    Joined:
    Jul 18, 2002
    Messages:
    2,768
    Location:
    Illinois, USA
    I think literacy is based on the techs after writing. Techs before it don't add to it.
     
  16. western100

    western100 Chieftain

    Joined:
    Dec 20, 2013
    Messages:
    1
    I think approval is calculated with this formula:
    [60+(happiness net*3)]%
     
  17. Fish Man

    Fish Man Emperor

    Joined:
    Feb 20, 2010
    Messages:
    1,376
    You can't just add the population values together to calculate the total pop. A city of 1 pop has 1,000 citizens but a city of 2 has 6,000 (or something around that). The population of a city doesn't increase linearly as the number of workable "citizens" goes up, so a city of 100 citizens will have much more pop than 100 cities with 1 citizen each.
     
  18. JFouche

    JFouche Chieftain

    Joined:
    Aug 27, 2013
    Messages:
    1
    Just for the sake of completeness: given the numbers above the population can be approximated quite well with the polynomial

    y = -0.00139963244 * x^4 + 0.4812530591 * x^3 + 2.229934025 * x^2 - 6.693706924 * x + 8.543720415

    where y is the number in thousands displayed in the demographics and x is the number displayed on the city.
     
  19. Mutineer

    Mutineer Deity

    Joined:
    Feb 20, 2006
    Messages:
    3,715
    I am sure defensive and barrack type pf building add to soldiers.
     
  20. Velasti

    Velasti Warlord

    Joined:
    Sep 26, 2014
    Messages:
    103
    This isn't correct.

    In my current game, I have 4 cities, total population is 107. The number predicted is 431,000. The number in my demographic is 55 million.

    My capital alone (43 pop) has 37 million.

    I think this depends on several factors, one of which is the current era that the game is in. My 20 pop cities are 4.5 million each.
     

Share This Page