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During the 20-30 years before Mao's era, the population in China was not increased much and the life expectancy was not lengthened either. Under the leadership of Mao, however, the population in China was increased from 500 million to 700 million and the life expectancy was lenghtened from 34 to 68. Of course, for those of very minority that were killed during his era or before he became the leader of the country, their life was shortened and their population was decreased a little. That's why their successors or followers (anti-maoists) slander and attack Mao, but the poeple of very majority in China, especially the ordinary poeple respect Mao and cherish the memory of Mao even though he has passed away for 35 years.