报告日期,2021-03-31,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-09-30,2019-06-30,2019-03-31,2018-12-31,2018-09-30,2018-06-30,2018-03-31,2017-12-31,2017-09-30,2017-06-30,2017-03-31,2016-12-31,2016-09-30,2016-06-30,2016-03-31,2015-12-31,2015-09-30,2015-06-30,2015-03-31,2014-12-31,2014-09-30,2014-06-30,2014-03-31,2013-12-31,2013-09-30,2013-06-30,2013-03-31,2012-12-31,2012-09-30,2012-06-30,2012-03-31,2011-12-31,2011-09-30,2011-06-30,2011-03-31,2010-12-31,2010-09-30,2010-06-30,2010-03-31,2009-12-31,2009-09-30,2009-06-30,2009-03-31,2008-12-31,2007-12-31, 应收账款周转率(次),1.21,5.23,3.4,2.14,1.03,4.64,3.17,1.93,0.98,4.01,2.89,1.89,1,4.42,3.19,2.18,1.13,3.91,2.84,1.79,0.86,3.64,2.74,1.71,0.84,3.21,2.3,1.51,0.75,3.48,2.6,1.7,0.8,3.36,2.39,1.53,0.74,3.47,2.59,1.73,0.89,4.12,2.78,1.91,1.15,4.72,--,--,--,5.04,3.57, 应收账款周转天数(天),74.61,68.87,79.48,84.18,87.36,77.53,85.22,93.34,91.5,89.88,93.5,95.3,89.92,81.37,84.75,82.59,79.88,92.15,95.23,100.76,104.81,98.85,98.57,105.1,106.56,112.14,117.49,119.58,120.3,103.52,103.81,106.09,112.33,107.22,113.04,117.6,122.02,103.71,104.32,103.83,100.76,87.43,97.27,94.23,77.93,76.24,--,--,--,71.49,100.82, 存货周转率(次),0.87,4.21,3.18,1.99,0.83,4.6,3.54,2.4,1.1,4.57,3.58,2.47,1.16,4.98,3.73,2.61,1.08,4.67,3.71,2.36,1.14,4.97,3.6,2.13,0.95,4.33,3.15,2.02,0.97,4.7,3.49,2.25,0.96,4.16,2.98,1.97,0.91,4.02,3.09,1.91,0.84,4.31,3.17,2.21,1.1,4.77,--,--,--,5.7,5.03, 固定资产周转率(次),--,6.17,--,2.91,--,7.43,--,4.79,--,8.8,--,4.65,--,8.13,--,3.9,--,5.71,--,2.65,--,4.67,--,2.08,--,3.6,--,1.65,--,3.09,--,1.43,--,3.89,--,4.92,--,12.24,--,6.57,--,14.34,--,8.51,8.88,14.61,--,--,--,--,1.27, 总资产周转率(次),0.2,0.87,0.61,0.37,0.16,0.89,0.66,0.44,0.21,0.93,0.7,0.46,0.25,1.07,0.81,0.54,0.24,0.9,0.67,0.43,0.2,0.83,0.62,0.39,0.18,0.75,0.6,0.38,0.18,0.76,0.55,0.36,0.15,0.6,0.45,0.3,0.13,0.55,0.42,0.28,0.12,0.71,0.53,0.36,0.29,1.17,--,--,--,1.43,1.27, 存货周转天数(天),103.73,85.43,84.97,90.46,108.11,78.26,76.37,75.1,81.89,78.78,75.52,72.92,77.58,72.31,72.29,69.03,83.59,77.05,72.75,76.21,79.22,72.37,74.94,84.35,94.29,83.13,85.66,89.25,92.65,76.53,77.44,80.12,93.82,86.52,90.51,91.24,98.53,89.61,87.43,94.15,106.79,83.46,85.25,81.3,81.46,75.46,--,--,--,63.14,71.57, 总资产周转天数(天),449.1,414.27,440.03,481.41,557.28,402.59,410.46,410.21,422.54,385.6,384.34,390.63,359.57,336.76,331.57,331.98,371.29,400.71,400.95,420.27,451.13,431.45,437.11,462.49,514.29,477.39,450.98,475.44,508.76,474.81,489.22,504.2,606.88,596.13,598.54,600.6,674.16,651.58,644.55,649.35,730.52,506.9,509.53,506.19,313.04,307.43,--,--,--,251.8,283.64, 流动资产周转率(次),0.31,1.41,1,0.62,0.28,1.55,1.1,0.73,0.37,1.51,1.12,0.73,0.35,1.51,1.15,0.77,0.35,1.25,0.93,0.6,0.27,1.13,0.84,0.53,0.24,1.09,0.89,0.58,0.27,1.16,0.84,0.54,0.23,0.86,0.64,0.41,0.18,0.69,0.51,0.33,0.15,0.84,0.6,0.4,0.35,1.41,--,--,--,1.66,147.92, 流动资产周转天数(天),285.99,255.28,270.05,290.42,326.68,231.91,246.22,246.47,240.19,239,241.87,247.02,253.74,238.89,234.72,233.74,260.27,288.99,288.96,301.41,328.95,319.46,320.28,336.64,374.38,331.58,303.17,312.83,333.58,310.24,320.44,332.35,397.88,416.33,423.26,435.84,498.34,524.09,525.09,539.41,619.83,428.83,446.35,447.43,253.95,254.87,--,--,--,216.54,2.43, 经营现金净流量对销售收入比率(%),-0.05,0.12,0.1,0.11,0.21,0.13,0.11,0.14,0.26,0.11,0.03,-0.01,-0.04,0.09,0.07,0.06,0.17,0.09,0.06,0.07,0.06,0.08,0.1,0.03,0.13,0.05,-0,0.02,0.03,0.04,0.04,-0,0.08,0.05,-0.02,-0.13,-0.21,0.02,0,-0.08,0,-0.1,-0.2,-0.23,0.12,0.08,-0.12,--,-0.54,0.24,0.08, 资产的经营现金流量回报率(%),-0.01,0.09,0.05,0.04,0.03,0.1,0.07,0.06,0.05,0.08,0.02,-0,-0.01,0.09,0.05,0.03,0.04,0.08,0.04,0.03,0.01,0.06,0.06,0.01,0.02,0.04,-0,0.01,0,0.03,0.02,-0,0.01,0.03,-0.01,-0.04,-0.03,0.01,0,-0.02,0,-0.05,-0.07,-0.06,0.03,0.08,--,--,--,0.3,0.1, 经营现金净流量与净利润的比率(%),-0.56,1.34,1.1,1.12,2.45,1.47,1.16,1.34,3.11,1.24,0.33,-0.08,-0.47,1.02,0.64,0.53,1.79,1.04,0.63,0.67,0.7,1.16,1.34,0.5,2.4,1.02,-0.02,0.42,0.58,0.73,0.8,-0.03,2.42,0.99,-0.26,-2.21,-5.8,0.5,0.03,-0.92,0.03,-1.07,-1.79,-1.87,0.98,0.69,-1.11,--,-4.15,2.48,0.65, 经营现金净流量对负债比率(%),-0.02,0.2,0.11,0.08,0.08,0.2,0.12,0.1,0.11,0.15,0.04,-0.01,-0.03,0.24,0.14,0.09,0.12,0.24,0.13,0.09,0.04,0.22,0.21,0.05,0.09,0.15,-0,0.04,0.02,0.1,0.08,-0,0.05,0.15,-0.04,-0.22,-0.17,0.07,0,-0.11,0,-0.31,-0.36,-0.29,0.06,0.15,--,--,--,0.59,0.19, 现金流量比率(%),-2,20.59,11.69,8.35,9.7,28.76,19.15,16.59,15.62,21.66,5.23,-0.96,-2.76,24.51,13.92,9.08,11.75,24.11,13.27,9.07,4.46,22.03,21.27,4.88,8.53,14.62,-0.27,3.51,2,10.14,8.45,-0.22,5.15,15.04,-4.21,-21.55,-16.53,7.21,0.48,-11,0.16,-30.61,-36.28,-28.84,6.4,15.5,--,--,--,60.69,19.32,