报告日期,2021-03-31,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-09-30,2019-06-30,2018-12-31,2017-12-31,2016-12-31,2016-06-30,2015-12-31,2015-06-30,2014-12-31,2013-12-31, 应收账款周转率(次),2.04,7.6,6.02,3.7,--,9.28,--,--,11.2,6.47,5.44,2.54,4.96,2.27,4.99,5.56, 应收账款周转天数(天),44.18,47.35,44.83,48.63,--,38.8,--,--,32.16,55.61,66.12,70.93,72.6,79.27,72.2,64.77, 存货周转率(次),1.19,3.16,2.33,1.56,--,2.99,--,--,3.9,2.94,2.56,1.03,2.22,1.14,2.3,3.54, 固定资产周转率(次),--,--,--,--,--,--,--,--,--,--,--,--,--,--,--,0.56, 总资产周转率(次),0.09,0.35,--,0.32,--,--,--,--,--,--,--,--,--,--,--,0.56, 存货周转天数(天),75.62,113.98,115.93,115.18,--,120.58,--,--,92.23,122.62,140.65,174.83,161.87,157.51,156.74,101.75, 总资产周转天数(天),991.19,1034.78,--,554.02,--,--,--,--,--,--,--,--,--,--,--,644.58, 流动资产周转率(次),0.11,0.43,0.32,0.5,--,1.34,--,--,2.1,1.54,1.35,0.66,1.05,0.45,0.84,91.63, 流动资产周转天数(天),840.34,828.92,835.4,358.64,--,268.88,--,--,171.14,234.25,267.26,271.78,343.84,396.74,429.54,3.93, 经营现金净流量对销售收入比率(%),-0.06,0.31,0.46,0.42,0.38,0.35,0.28,0.19,0.27,0.23,0.11,0.11,0.13,0.2,0.26,0.29, 资产的经营现金流量回报率(%),-0.01,0.07,0.08,0.13,--,0.3,--,--,0.28,0.17,0.06,0.03,0.08,0.05,0.13,0.16, 经营现金净流量与净利润的比率(%),-0.18,0.98,1.36,1.19,1.02,0.97,0.75,0.54,0.85,0.94,0.63,0.65,0.76,0.97,1.09,6.39, 经营现金净流量对负债比率(%),-0.11,1.11,1.38,1.27,--,4.36,--,--,1.49,0.71,0.28,0.13,0.32,0.12,0.27,0.29, 现金流量比率(%),-10.97,115.18,143.18,134.83,--,485.15,--,--,156.64,77,29.95,13.87,34.8,13.44,31.07,37.67,