报告日期,2021-03-31,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-09-30,2019-06-30,2019-03-31,2018-12-31,2018-09-30,2018-06-30,2018-03-31,2017-12-31,2017-09-30,2017-06-30,2017-03-31,2016-12-31,2016-09-30,2016-06-30,2016-03-31,2015-12-31,2015-09-30,2015-06-30,2015-03-31,2014-12-31,2014-09-30,2014-06-30,2014-03-31,2013-12-31,2012-12-31,2011-12-31, 应收账款周转率(次),1.33,3.68,2.43,1.55,0.69,3.95,2.74,1.96,1.13,6.56,3.99,2.81,2.29,21.21,11.21,8.13,3.81,30.27,8.32,7.33,3.76,21.48,7.23,6.37,2.87,11.72,--,--,--,16.16,44.55,46.14, 应收账款周转天数(天),67.64,97.92,111.21,116.11,131.2,91.15,98.42,91.94,79.38,54.86,67.68,64.11,39.24,16.97,24.1,22.15,23.63,11.89,32.44,24.57,23.92,16.76,37.35,28.27,31.4,30.72,--,--,--,22.28,8.08,7.8, 存货周转率(次),0.4,1.2,0.97,0.59,0.28,1.23,1.03,0.59,0.4,0.98,0.58,0.29,0.22,0.99,0.78,0.55,0.36,2.26,1.54,0.96,0.47,2.09,1.54,0.97,0.4,1.94,--,--,--,2.53,2.58,2.51, 固定资产周转率(次),--,0.68,--,0.31,--,0.7,--,0.35,--,0.64,--,0.27,--,0.79,--,0.39,--,1.26,--,0.7,--,1.9,--,0.89,--,1.52,--,--,--,--,--,0.52, 总资产周转率(次),0.06,0.15,0.12,0.07,0.03,0.16,0.12,0.08,0.05,0.15,0.12,0.06,0.04,0.2,0.16,0.1,0.05,0.25,0.19,0.12,0.06,0.33,0.26,0.18,0.11,0.45,--,--,--,0.55,--,0.52, 存货周转天数(天),226.81,300.13,277.92,304.83,321.2,293.54,261.32,304.47,222.94,365.71,466.64,627.18,402.32,363.49,345.93,328.35,248.07,159.04,174.84,186.92,191.37,172.56,175.18,184.9,226.99,185.4,--,--,--,142.39,139.42,143.49, 总资产周转天数(天),1595.74,2422.61,2301.79,2503.48,2694.61,2233.25,2233.25,2275.6,1943.84,2368.42,2331.61,2875.4,2356.02,1826.48,1736.33,1855.67,1935.48,1426.31,1458.67,1506.28,1507.54,1077.2,1021.57,989.01,829.49,792.08,--,--,--,655.86,--,697.54, 流动资产周转率(次),0.13,0.33,0.25,0.16,0.07,0.35,0.26,0.17,0.1,0.32,0.26,0.13,0.07,0.37,0.29,0.18,0.08,0.42,0.31,0.2,0.1,0.56,0.44,0.29,0.21,0.81,--,--,--,0.96,1.12,106.19, 流动资产周转天数(天),672.14,1075.59,1074.41,1152.37,1280.23,1031.52,1046.92,1035.67,873.79,1135.65,1052.63,1335.31,1208.05,976.4,937.5,992.83,1134.93,847.46,882.06,910.93,942.41,648.53,619.12,610.58,431.03,446.04,--,--,--,375.08,321.29,3.39, 经营现金净流量对销售收入比率(%),-0,0.65,0.03,0,-0.22,0.21,0.63,0.18,0.05,0.07,-0.07,-0.23,0.02,0.12,0.25,0.09,0.01,0.32,0.25,0.08,0.23,0.64,0.54,0.51,0.54,0.39,0.24,0.31,0.31,0.46,0.39,0.58, 资产的经营现金流量回报率(%),-0,0.09,0,0,-0.01,0.03,0.07,0.01,0,0.01,-0.01,-0.01,0,0.02,0.04,0.01,0,0.07,0.04,0.01,0.01,0.16,0.11,0.08,0.06,0.17,--,--,--,0.25,0.22,0.3, 经营现金净流量与净利润的比率(%),-0.04,--,--,--,-9.07,--,13.32,3.47,1.75,--,-0.42,-1.03,0.07,0.37,0.81,0.3,0.04,1.55,0.98,0.26,0.67,2.21,1.81,1.52,1.36,1.1,0.68,0.93,0.76,1.25,1.09,1.39, 经营现金净流量对负债比率(%),-0,0.2,0.01,0,-0.02,0.08,0.17,0.03,0.01,0.03,-0.02,-0.03,0,0.07,0.11,0.03,0,0.23,0.13,0.03,0.05,0.73,0.67,0.7,0.18,1.15,--,--,--,1.47,1.32,1.52, 现金流量比率(%),-0.06,26.2,0.88,0.06,-2.01,9.25,18.53,3.81,0.57,2.88,-2.26,-3.68,0.26,7.64,18.33,4.76,0.18,41.79,34.95,8.58,14.02,190.33,210.94,194.25,26.75,233.9,--,--,--,233.76,191.98,193.91,