| 2017 | 2018 | 2019 | 2020 | 2021 |
净利润 | 90254.70 | 36026.16 | 126852.87 | 402132.60 | 1120250.50 |
利息支出 | 26317.47 | 26335.06 | 43730.45 | 50603.60 | 71014.30 |
研发费用 | 357607.78 | 447090.01 | 474445.66 | 467191.90 | 412059.20 |
非经常性收益 | 344.41 | 947.47 | 280.59 | 1251.70 | 385.80 |
税后净营业利润 | 378069.4838 | 390739.6613 | 515379.7313 | 790009.8375 | 1482410.95 |