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, 应收账款周转率(次),12.83,14.06,14.57,17.46,12.2,11.72,13.44,11.31, 应收账款周转天数(天),28.06,25.6,24.72,20.62,29.5,30.72,26.79,31.84, 存货周转率(次),3.27,3.38,2.42,2.94,3.16,3.13,2.97,3, 固定资产周转率(次),2.13,2.34,2.3,2.81,--,--,--,1.17, 总资产周转率(次),0.99,1.04,0.98,1.33,1.35,--,--,1.17, 存货周转天数(天),109.93,106.56,148.48,122.55,113.78,115.09,121.35,119.82, 总资产周转天数(天),362.61,345.29,367.87,271.41,267.46,--,--,306.46, 流动资产周转率(次),2.49,2.47,2.28,3.34,3.14,2.77,2.54,209.53, 流动资产周转天数(天),144.36,146.04,158,107.89,114.67,129.77,141.85,1.72, 经营现金净流量对销售收入比率(%),0.13,0.14,0.02,0.19,0.14,0.12,0.12,0.13, 资产的经营现金流量回报率(%),0.11,0.13,0.01,0.22,0.18,0.15,0.16,0.15, 经营现金净流量与净利润的比率(%),1.45,2.18,0.18,1.51,1.22,1.28,1.15,1.74, 经营现金净流量对负债比率(%),0.21,0.3,0.03,0.48,0.39,0.27,0.28,0.26, 现金流量比率(%),21.41,31.26,3.38,51.68,42.64,28.71,28.44,26.18,