World Index                                               1750               [value]   2005      [value] Ratio of improvement  
Urban population                          [%]    > 2 49 24,5
Total adult literacy                         (over 14-yr)  [%] > 5 80 16
GDP per capita                         [1990 US$  converted GK PPP]        > $640 $6,477.00 10,1
Infant mortality                                      (<1-yr x 1000 live-births) [rate]                > 360 52 (-)6,9
Life expectancy at birth                    [yr] > 22 80 3,6