2021 1月 2月 3月 4月 5月 6月 7月
开工率 42.83% 34.76% 40.03% 42.47% 41.69% 36.48% 35.38%
环比 -2.59% -18.84% 15.16% 6.10% -1.84% -12.50% -3.02%
同比 1.69% 809.95% 27.08% 5.86% 6.71% -19.54% -15.76%