报告日期,2018-12-31,2017-12-31,2016-12-31,2015-12-31,2014-12-31,2013-12-31, 应收账款周转率(次),2.8,3.14,2.29,2.34,2.82,3.73, 应收账款周转天数(天),128.55,114.68,157.32,153.95,127.65,96.63, 存货周转率(次),0.65,0.64,0.91,1.17,1.74,1.13, 固定资产周转率(次),11.01,9.57,--,--,--,0.69, 总资产周转率(次),0.37,0.4,0.45,--,--,0.69, 存货周转天数(天),555.81,562.76,394.65,308.25,207.36,319.83, 总资产周转天数(天),982.53,898.43,795.4,--,--,520.23, 流动资产周转率(次),0.42,0.47,0.55,0.64,0.82,88.71, 流动资产周转天数(天),853.08,765.14,651.58,561.71,439.13,4.06, 经营现金净流量对销售收入比率(%),0.33,0.42,0.3,0.36,0.1,0.39, 资产的经营现金流量回报率(%),0.11,0.13,0.12,0.16,0.06,0.27, 经营现金净流量与净利润的比率(%),1.1,1.59,1.04,1.18,0.33,1.77, 经营现金净流量对负债比率(%),0.27,0.42,0.4,0.75,0.25,0.91, 现金流量比率(%),27.42,43.03,41.69,81.46,27.18,101.06,