Interesting that that graph shows none of the effects of either the Great Leap Forward or the Cultural Revolution. In other words, it's quite inaccurate. Also n

Interesting that that graph shows none of the effects of either the Great Leap Forward or the Cultural Revolution. In other words, it's quite inaccurate. Also note that neither of the two resultant graphs show the period requested (1950-1980). One shows 1970-2013, the other 1600-2013.