报告日期,2019-12-31,2018-12-31,2017-12-31,2016-12-31,2015-12-31,2014-12-31,2013-12-31,2012-12-31,2011-12-31, 应收账款周转率(次),18.01,18.18,17.63,20.33,20.12,13.96,9.68,7.25,6.7, 应收账款周转天数(天),19.99,19.8,20.42,17.71,17.89,25.79,37.17,49.67,53.74, 存货周转率(次),8.13,8.84,8.16,7.68,7.71,7.17,4.47,4.34,5.5, 固定资产周转率(次),7.09,6.15,7.6,10.84,--,--,--,--,1.49, 总资产周转率(次),1,1.05,1.17,1.47,1.84,--,--,--,1.49, 存货周转天数(天),44.27,40.73,44.11,46.89,46.72,50.24,80.58,82.99,65.42, 总资产周转天数(天),360.04,341.39,306.62,245.4,195.79,--,--,--,241.4, 流动资产周转率(次),1.39,1.41,1.56,2.04,2.69,2.89,2.21,1.95,194.58, 流动资产周转天数(天),259.09,255.43,230.37,176.75,133.65,124.45,163.25,184.78,1.85, 经营现金净流量对销售收入比率(%),0.19,0.11,0.15,0.14,0.21,0.17,0.19,0.02,0.01, 资产的经营现金流量回报率(%),0.18,0.12,0.13,0.16,0.32,0.28,0.25,0.03,0.02, 经营现金净流量与净利润的比率(%),1.55,1.05,1.24,0.84,1.49,2.02,2.94,1.09,0.2, 经营现金净流量对负债比率(%),0.54,0.39,0.35,0.28,0.6,0.51,0.44,0.08,0.04, 现金流量比率(%),58.13,42.83,36.18,30.76,64.09,53.6,48.12,8.75,4.56,