年份 | U1 | U2 | C | D | U1/U2 | 东部 | 西部 | 中部 |
2012 | 0.232 | 0.292 | 0.956 | 0.486 | 0.743 | 0.601 | 0.405 | 0.414 |
2013 | 0.236 | 0.294 | 0.957 | 0.490 | 0.746 | 0.604 | 0.411 | 0.417 |
2014 | 0.229 | 0.297 | 0.956 | 0.487 | 0.714 | 0.604 | 0.400 | 0.422 |
2015 | 0.206 | 0.288 | 0.941 | 0.467 | 0.645 | 0.583 | 0.388 | 0.394 |
2016 | 0.218 | 0.245 | 0.973 | 0.458 | 0.837 | 0.570 | 0.378 | 0.391 |
2017 | 0.251 | 0.311 | 0.970 | 0.510 | 0.776 | 0.611 | 0.444 | 0.440 |
2018 | 0.248 | 0.334 | 0.962 | 0.516 | 0.717 | 0.619 | 0.454 | 0.438 |
2019 | 0.248 | 0.326 | 0.971 | 0.515 | 0.740 | 0.613 | 0.451 | 0.450 |
2020 | 0.275 | 0.307 | 0.975 | 0.505 | 0.751 | 0.600 | 0.446 | 0.439 |
2021 | 0.245 | 0.306 | 0.969 | 0.504 | 0.759 | 0.603 | 0.436 | 0.440 |
均值 | 0.239 | 0.300 | 0.963 | 0.494 | 0.743 | 0.601 | 0.421 | 0.425 |