报告日期,2021-03-31,2020-12-31,2020-09-30,2020-06-30,2020-03-31,2019-12-31,2019-09-30,2019-06-30,2019-03-31,2018-12-31,2017-12-31,2016-12-31, 总资产利润率(%),1.1,1.39,1.66,2.34,2.02,18.69,--,8.68,--,18.94,19.89,26.02, 主营业务利润率(%),10.04,5.91,8.28,12.63,8.32,16.21,16.68,13.45,12.31,11.87,11.25,16.22, 总资产净利润率(%),1.13,1.76,2.12,3.08,2.07,21.59,--,9.16,--,21.17,21.63,26.02, 成本费用利润率(%),6.59,1.96,2.57,5.99,5.05,9.9,10.34,7.25,6.5,6.66,6.69,10.87, 营业利润率(%),5.97,1.84,2.43,5.43,4.67,8.74,9.04,6.52,5.84,6.04,6.12,9.48, 主营业务成本率(%),89.79,93.88,91.56,87.17,91.61,83.45,83.03,86.3,87.46,87.9,88.39,83.3, 销售净利率(%),4.9,1.34,2.06,4.76,4.54,7.56,7.78,5.79,5.02,5.32,5.29,8.16, 净资产收益率(%),1.37,1.72,2.06,2.86,2.68,24.54,--,10.82,--,23.77,25.83,38.55, 股本报酬率(%),22.58,218.46,33.27,223.92,--,--,--,--,--,--,--,--, 净资产报酬率(%),1.25,12.37,1.89,11.94,2.48,38.75,--,10.1,--,23.29,25.83,38.55, 资产报酬率(%),1.1,11.17,1.66,10.32,2.02,32.33,--,8.68,--,18.94,19.89,26.02, 销售毛利率(%),--,--,--,--,--,--,--,13.7,--,12.1,11.61,16.7, 三项费用比重(%),1.07,1.13,2.87,3.36,1.43,4.15,3.86,3.58,3.78,2.59,2.49,3.12, 非主营比重(%),3.26,10.74,7.61,3.84,1.52,2.17,1.32,3.06,3.81,1.39,0.8,0.05, 主营利润比重(%),167.28,316.94,341.26,232.18,177.08,186.12,185.01,205.8,206.97,196.37,184.45,171.72,