报告日期,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),4.47,4.36,4.05,3.89,3.81,3.93,3.46, 应收账款周转天数(天),80.57,82.59,88.85,92.45,94.6,91.62,104.19, 存货周转率(次),2.04,2.34,2.85,2.91,3.11,3.23,2.54, 固定资产周转率(次),4.2,4.01,--,--,--,--,0.91, 总资产周转率(次),0.64,0.74,0.89,--,--,--,0.91, 存货周转天数(天),176.41,153.73,126.43,123.8,115.93,111.35,141.66, 总资产周转天数(天),564.79,486.49,406.46,--,--,--,393.57, 流动资产周转率(次),0.9,1.11,1.53,1.47,1.45,1.54,132.2, 流动资产周转天数(天),400.94,324.09,234.88,244.62,249.03,233.55,2.72, 经营现金净流量对销售收入比率(%),0.05,-0,0.12,0.21,0.15,0.14,0.06, 资产的经营现金流量回报率(%),0.03,-0,0.1,0.19,0.15,0.14,0.06, 经营现金净流量与净利润的比率(%),0.89,-0.01,1.01,2.17,1.2,1.05,0.57, 经营现金净流量对负债比率(%),0.1,-0,0.18,0.33,0.25,0.27,0.11, 现金流量比率(%),11.37,-0.11,20.37,33.52,25.45,26.82,10.81,