Production drop
Policy changes affecting how farming was organized coincided with droughts and floods. Weather had been relatively mild for much of the 1950s, but became particularly bad by 1959, driving down crop yields. As a result, year-over-year grain production fell dramatically.[23] The harvest was down by 15% in 1959 compared to 1958, and by 1960, it was at 70% of its 1958 level.[24] Specifically, according to China's governmental data, crop production decreased from 200 million tons (or 400 billion jin) in 1958 to 170 million tons (or 340 billion jin) in 1959, and to 143.5 million tons (or 287 billion jin) in 1960.[25]