The figures show that four out of five countries increased their total CO2 output during the selected period. The total amount of CO2 emittion in the US, which produed most during the five countries, increased significantly from 4,817.5 in 1990 to 5,834.5 in 2002. In India, which was the lowest producer in 1990, it sharply increased, rising from 677.9 to 1,218.9 during 12 years. However, it decreased slightly in Russia, from 1,984.0 to 1,430.6.
In perspective of per capita metric tons, the figures show the same trend as the total. In every countries except Russia the amount of CO2 emission per capita increased slightly during the measured period, whereas it fell dramatically in Russia.