报告日期,2020-12-31,2019-12-31,2018-12-31,2017-12-31,2016-12-31,2015-12-31,2014-12-31,2013-12-31,2012-12-31, 应收账款周转率(次),8.14,9.1,8.39,6.85,5.29,4.41,3.93,4.2,3.33, 应收账款周转天数(天),44.23,39.58,42.92,52.59,68.1,81.58,91.64,85.67,108.04, 存货周转率(次),11.72,14.45,17.11,16.45,16.13,14.62,13.68,14.64,7.78, 固定资产周转率(次),1.83,2,1.81,1.18,0.77,0.65,--,--,0.32, 总资产周转率(次),0.75,0.83,0.95,0.79,0.56,0.47,0.41,--,0.32, 存货周转天数(天),30.71,24.91,21.04,21.89,22.31,24.62,26.32,24.59,46.28, 总资产周转天数(天),482.77,432.48,380.95,458.13,648.3,758.85,888.23,--,1127.82, 流动资产周转率(次),2.34,2.17,2.87,3.38,2.74,2.46,1.77,1.21,73.17, 流动资产周转天数(天),154,165.72,125.38,106.59,131.54,146.41,203.19,297.35,4.92, 经营现金净流量对销售收入比率(%),0.33,0.34,0.38,0.3,0.35,0.22,0.19,0.12,0.16, 资产的经营现金流量回报率(%),0.25,0.26,0.32,0.24,0.2,0.11,0.08,0.05,0.05, 经营现金净流量与净利润的比率(%),1.02,1,1.23,1.36,3.07,2.94,1.8,1.17,0.78, 经营现金净流量对负债比率(%),0.72,1.06,1.34,0.7,0.39,0.18,0.13,0.07,0.08, 现金流量比率(%),100.88,145.39,176.38,92.42,84.64,58.11,19.62,23.97,15.09,