The table shows data on the demographics of four nations This table displays the demographic information of 4 big countries China, USA, UK and Russia as regard population, GDP per capita and average life expectancy. As regard the population, China shows the greatest number of population 1,357,000,000, in contrary to China, UK shows the lowest number 64,937,000. This fact may explain that the GDP per Chinese capita is lowest value 6,807 US$ in these four countries. As regard the GDP per person , The American citizen enjoys the lion's share about 53,681 US$. Also this table shows the quality of life which reflected by life expectancy, UK comes first as the British citizen life expectancy is 81.5 then the Chinese 75,5, Russian 72,2 and finally the American 69,9. It is notable , Despite USA enjoys the highest GDP per capita, it shows the lowest value of life expectancy and this is contrary to expected.