报告日期,2020-12-31,2019-12-31,2018-12-31,2017-12-31,2016-12-31,2015-12-31,2014-12-31,2013-12-31,2012-12-31,2011-12-31, 应收账款周转率(次),3.68,3.95,6.56,21.21,30.27,21.48,11.72,16.16,44.55,46.14, 应收账款周转天数(天),97.92,91.15,54.86,16.97,11.89,16.76,30.72,22.28,8.08,7.8, 存货周转率(次),1.2,1.23,0.98,0.99,2.26,2.09,1.94,2.53,2.58,2.51, 固定资产周转率(次),0.68,0.7,0.64,0.79,1.26,1.9,1.52,--,--,0.52, 总资产周转率(次),0.15,0.16,0.15,0.2,0.25,0.33,0.45,0.55,--,0.52, 存货周转天数(天),300.13,293.54,365.71,363.49,159.04,172.56,185.4,142.39,139.42,143.49, 总资产周转天数(天),2422.61,2233.25,2368.42,1826.48,1426.31,1077.2,792.08,655.86,--,697.54, 流动资产周转率(次),0.33,0.35,0.32,0.37,0.42,0.56,0.81,0.96,1.12,106.19, 流动资产周转天数(天),1075.59,1031.52,1135.65,976.4,847.46,648.53,446.04,375.08,321.29,3.39, 经营现金净流量对销售收入比率(%),0.65,0.21,0.07,0.12,0.32,0.64,0.39,0.46,0.39,0.58, 资产的经营现金流量回报率(%),0.09,0.03,0.01,0.02,0.07,0.16,0.17,0.25,0.22,0.3, 经营现金净流量与净利润的比率(%),--,--,--,0.37,1.55,2.21,1.1,1.25,1.09,1.39, 经营现金净流量对负债比率(%),0.2,0.08,0.03,0.07,0.23,0.73,1.15,1.47,1.32,1.52, 现金流量比率(%),26.2,9.25,2.88,7.64,41.79,190.33,233.9,233.76,191.98,193.91,