报告日期,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-09-30,2019-06-30,2019-03-31,2018-12-31,2018-09-30,2018-06-30,2018-03-31,2017-12-31,2017-09-30,2017-06-30,2017-03-31,2016-12-31,2016-09-30,2015-12-31,2014-12-31,2013-12-31, 应收账款周转率(次),2.01,1.35,0.84,0.35,2.01,1.4,0.96,0.43,2.45,1.78,1.25,0.53,2.94,2.19,1.49,--,3.47,--,3.46,3.57,3.81, 应收账款周转天数(天),179.18,200.68,214.44,260.04,179.1,193,187.3,207.23,147.2,152.02,144.32,171.27,122.62,123.39,121.16,--,103.71,--,104.16,100.94,94.56, 存货周转率(次),1.38,0.86,0.62,0.22,1.44,0.93,0.66,0.27,1.56,1.02,0.69,0.3,1.62,1.05,0.73,--,1.45,--,1.26,1.18,0.99, 固定资产周转率(次),1.52,--,0.73,--,1.96,--,1.16,--,2.45,--,1.13,--,2.23,1.46,1.01,--,2.36,--,2.84,--,0.55, 总资产周转率(次),0.46,0.3,0.21,0.08,0.48,0.33,0.23,0.1,0.52,0.36,0.24,0.09,0.58,0.45,0.32,--,0.66,--,0.64,0.65,0.55, 存货周转天数(天),260.32,315.49,292.68,405.41,250.8,291.89,271.7,329.67,230.36,265.72,259.07,302.01,221.59,257.83,247.32,--,248.33,--,285.06,303.85,365.19, 总资产周转天数(天),790.69,890.5,874.21,1142.13,750,823.17,788.78,928.79,692.44,759.49,746.27,948.37,618.45,599.33,563.2,--,548.03,--,562.94,550.63,654.07, 流动资产周转率(次),0.79,0.54,0.37,0.14,0.82,0.56,0.38,0.16,0.8,0.53,0.35,0.14,0.9,0.76,0.55,--,1.15,--,1.1,1.13,99.51, 流动资产周转天数(天),453.06,503.17,491.8,631.14,439.78,486.05,471.45,556.24,450.39,510.69,517.99,655.02,398.94,354.28,328.59,--,314.22,--,326,318.13,3.62, 经营现金净流量对销售收入比率(%),0.18,0.2,0.09,0.24,0.17,0.11,0.09,0.09,0.01,-0.01,0.02,0.05,0.1,0.13,0.11,0.13,0.19,0.25,0.15,0.07,0.15, 资产的经营现金流量回报率(%),0.08,0.06,0.02,0.02,0.08,0.04,0.02,0.01,0.01,-0,0,0,0.05,0.06,0.04,--,0.12,--,0.09,0.04,0.08, 经营现金净流量与净利润的比率(%),1.47,1.35,0.64,1.34,1.37,0.79,0.64,0.73,0.07,-0.07,0.11,0.41,0.68,0.84,0.73,1.33,1.1,1.59,0.78,0.39,0.88, 经营现金净流量对负债比率(%),0.34,0.26,0.08,0.09,0.31,0.14,0.07,0.03,0.02,-0.02,0.02,0.02,0.2,0.13,0.08,--,0.25,--,0.19,0.08,0.16, 现金流量比率(%),44.42,33.79,10.17,11.49,37.65,17.06,9.13,3.94,2.86,-2.14,2.24,2.58,29.73,17.64,10.14,--,32.78,--,25.22,9.56,19.81,