报告日期,2021-03-31,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-09-30,2019-06-30,2019-03-31,2018-12-31,2018-09-30,2018-06-30,2018-03-31,2017-12-31,2017-09-30,2017-06-30,2017-03-31,2016-12-31,2016-09-30,2016-06-30,2016-03-31,2015-12-31,2015-09-30,2015-06-30,2015-03-31,2014-12-31,2013-12-31,2012-12-31,2011-12-31, 应收账款周转率(次),1.23,4.67,3.26,2.09,0.9,4.7,3.38,2.13,0.93,4.82,3.96,2.46,1.22,6.24,4.7,3.08,1.31,5.54,4.14,2.58,1.07,5.42,--,--,--,6.3,6.75,7.12,7.61, 应收账款周转天数(天),73.25,77.03,82.95,86.08,99.63,76.53,79.93,84.69,96.62,74.64,68.23,73.16,73.77,57.73,57.43,58.52,68.72,64.94,65.16,69.84,83.74,66.47,--,--,--,57.14,53.34,50.55,47.31, 存货周转率(次),1.29,5.22,3.6,2.6,1.18,6.53,4.84,3.36,1.4,7.23,4.85,3.3,1.66,8.66,6.82,4.97,1.48,9.66,6.01,5.16,1.69,11.31,--,--,--,9.22,9.11,11.05,11.68, 固定资产周转率(次),--,5.13,--,2.4,--,5.42,--,2.69,--,4.99,--,2.29,--,4.93,--,2.46,--,3.82,--,1.87,--,4.72,--,--,--,8.36,--,--,1.4, 总资产周转率(次),0.17,0.61,0.44,0.28,0.14,0.68,0.5,0.34,0.15,0.62,0.45,0.29,0.13,0.62,0.47,0.32,0.13,0.66,0.49,0.33,0.17,0.89,--,--,--,1.07,1.16,1.29,1.4, 存货周转天数(天),69.85,69.03,74.93,69.11,76.12,55.14,55.73,53.54,64.18,49.83,55.65,54.52,54.38,41.55,39.6,36.23,60.81,37.28,44.89,34.87,53.13,31.82,--,--,--,39.03,39.52,32.58,30.83, 总资产周转天数(天),544.46,590.45,617.99,633.36,660.31,527.7,535.5,535.08,612.66,578.5,603.89,620.05,706.44,577.02,574.1,560.92,702.03,544.55,554.3,543.31,542.5,402.82,--,--,--,336.7,310.24,279.87,256.89, 流动资产周转率(次),0.2,0.75,0.53,0.34,0.16,0.82,0.61,0.41,0.18,0.75,0.55,0.36,0.15,0.75,0.57,0.39,0.16,0.85,0.63,0.43,0.24,1.33,--,--,--,1.66,1.74,1.76,179.54, 流动资产周转天数(天),447.98,482.38,513.31,527.55,547.78,436.47,443.79,443.79,508.19,482.51,493.78,506.19,595.63,480.96,476.78,465.12,578.41,421.69,426.81,417.83,381.52,270.47,--,--,--,217.29,206.98,204.84,2.01, 经营现金净流量对销售收入比率(%),-0.17,0.17,0.13,0.14,-0.05,0.19,0.16,0.2,0.1,0.1,0.1,0.06,-0.03,0.14,0.15,0.21,-0.02,0.21,0.17,0.22,0.18,0.25,0.2,0.17,0.16,0.16,0.18,0.19,0.12, 资产的经营现金流量回报率(%),-0.03,0.09,0.05,0.04,-0.01,0.12,0.08,0.07,0.02,0.06,0.04,0.02,-0,0.08,0.07,0.06,-0,0.11,0.07,0.06,0.03,0.2,--,--,--,0.16,0.18,0.22,0.16, 经营现金净流量与净利润的比率(%),-1,0.68,0.5,0.51,-0.19,0.92,0.78,1,0.55,0.67,0.56,0.32,-0.21,0.75,0.79,1.06,-0.1,0.93,0.77,1.01,0.79,1.19,0.95,0.9,0.8,0.91,1,1.1,0.74, 经营现金净流量对负债比率(%),-0.22,0.62,0.4,0.22,-0.04,0.71,0.41,0.32,0.08,0.35,0.25,0.08,-0.03,0.58,0.48,0.41,-0.02,0.96,0.62,0.47,0.17,1.22,--,--,--,1.06,0.94,1.3,0.91, 现金流量比率(%),-23.04,63.71,40.54,22.47,-4.32,72.14,41.84,32.33,8.37,36.04,24.78,7.99,-3.73,63.49,55.31,47.43,-2.3,96.39,61.8,47.02,16.94,121.91,--,--,--,106.26,94.42,129.64,91.42,