| 年份 | 恩施Z值 | 利川Z值 | 宣恩Z值 | 巴东Z值 | 建始Z值 | 鹤峰Z值 | 来凤Z值 | 咸丰Z值 | |||||
| 1970 | 0.145 | −0.174 | 0.308 | −1.048 | −0.109 | 1.138 | 0.378 | 0.189 | |||||
| 1971 | 0.292 | −0.025 | 0.616 | 1.276 | −0.020 | 0.005 | 0.016 | 0.460 | |||||
| 1972 | −0.454 | −0.960 | −0.875 | −0.898 | −0.703 | −0.994 | 0.274 | −0.454 | |||||
| 1973 | 0.279 | 0.589 | 0.967 | 1.180 | 0.302 | 0.733 | 0.817 | 0.766 | |||||
| 1974 | −0.482 | 0.168 | −0.758 | −0.236 | 0.586 | −0.766 | −0.451 | −0.941 | |||||
| 1975 | 1.114 | 1.100 | 1.002 | 0.128 | 0.382 | −0.523 | 0.117 | 1.182 | |||||
| 1976 | −1.220 | −1.881 | −0.139 | −1.616 | −1.077 | −1.163 | −0.417 | −0.597 | |||||
| 1977 | 0.045 | 0.147 | 0.571 | −0.378 | 0.284 | 0.487 | 0.993 | 0.364 | |||||
| 1978 | −0.649 | −0.894 | −0.009 | −1.230 | −0.703 | −1.808 | −0.625 | −0.674 | |||||
| 1979 | 0.397 | 0.906 | −0.288 | 1.017 | 0.249 | −1.070 | −1.171 | −0.605 | |||||
| 1980 | 1.373 | 1.110 | 1.656 | 1.147 | 1.291 | 3.020 | 1.720 | 2.004 | |||||
| 1981 | −0.783 | −0.875 | −1.409 | −0.351 | −0.370 | −1.542 | −1.436 | −0.975 | |||||
| 1982 | 1.467 | 1.945 | 2.292 | 0.802 | 1.666 | 2.945 | 0.615 | 1.663 | |||||
| 1983 | 1.818 | 0.983 | 2.192 | 2.166 | 2.102 | 2.532 | 2.128 | 2.477 | |||||
| 1984 | 0.172 | 0.185 | −0.188 | 0.039 | 0.428 | 0.538 | −0.622 | 1.060 | |||||
| 1985 | 0.139 | 0.416 | 0.323 | −0.337 | −0.601 | −1.539 | −1.135 | −0.545 | |||||
| 1986 | −1.080 | −0.158 | −0.383 | −0.011 | −0.834 | −2.043 | −0.743 | −0.133 | |||||
| 1987 | 0.276 | −0.021 | −0.071 | −0.514 | 0.124 | 1.291 | 0.592 | 0.243 | |||||
| 1988 | −1.571 | −0.774 | −2.113 | −0.880 | −1.095 | −5.195 | −1.171 | −3.141 | |||||
| 1989 | 1.313 | 1.736 | 0.787 | 0.995 | 1.023 | 0.541 | 0.407 | 0.891 | |||||
| 1990 | −0.577 | −0.827 | −0.164 | −1.348 | −1.201 | −2.344 | 0.462 | 0.250 | |||||
| 1991 | 0.662 | −0.312 | 0.763 | 0.448 | 0.500 | 1.887 | 0.628 | 0.475 | |||||
| 1992 | −1.744 | −1.197 | −2.091 | −0.746 | −1.020 | −11.948 | −1.085 | −0.626 | |||||
| 1993 | 1.315 | 1.673 | 0.470 | −0.155 | 1.041 | 0.519 | 0.522 | 1.233 | |||||
| 1994 | −0.391 | −0.035 | −1.219 | −0.501 | −0.051 | −11.573 | −1.207 | −1.310 | |||||
| 1995 | −0.215 | −0.243 | 0.063 | −0.807 | −0.008 | −0.620 | 0.565 | 0.000 | |||||
| 1996 | 0.127 | 0.881 | 1.139 | 1.042 | 0.852 | 1.001 | 0.684 | 0.990 | |||||
| 1997 | 0.247 | −0.755 | −0.370 | −1.781 | −0.507 | −1.231 | −1.071 | −0.421 | |||||
| 1998 | 1.214 | 1.583 | 1.579 | 1.960 | 1.436 | 2.668 | 1.792 | 1.360 | |||||
| 1999 | −0.316 | −0.462 | 0.077 | −0.247 | −0.203 | 0.078 | 0.959 | 0.494 | |||||
| 2000 | 0.680 | 1.015 | 0.058 | 0.182 | 0.598 | 0.168 | 0.215 | −0.076 | |||||
| 2001 | −2.008 | −1.041 | −1.056 | −1.269 | −2.259 | −12.102 | −0.544 | −0.745 | |||||
| 2002 | 0.094 | 0.489 | 0.509 | 0.123 | 0.564 | 0.808 | −0.017 | 0.243 | |||||
| 2003 | −0.633 | −0.615 | −0.399 | 0.305 | −0.347 | 0.699 | −0.143 | −0.234 | |||||
| 2004 | −0.754 | −0.527 | 0.182 | −0.011 | −0.325 | 0.446 | 0.577 | −0.338 | |||||
| 2005 | −0.572 | −0.691 | −0.612 | −0.158 | −0.995 | −2.926 | −0.422 | −1.029 | |||||
| 2006 | −1.845 | −2.344 | −1.349 | −1.117 | −1.118 | −9.744 | −1.205 | −1.715 | |||||
| 2007 | 1.457 | 1.463 | 0.699 | 1.750 | 0.457 | 1.670 | 0.368 | 0.784 | |||||
| 2008 | 1.456 | 0.893 | −0.292 | 0.912 | 1.303 | 1.442 | −0.313 | −0.729 | |||||
| 2009 | −0.785 | −0.387 | −1.474 | −1.064 | −1.254 | −0.042 | −1.673 | −0.485 | |||||
| 2010 | −0.624 | −0.801 | −0.150 | 0.159 | −0.334 | 0.200 | 0.965 | 0.510 | |||||
| 2011 | −0.651 | −0.333 | −0.088 | −0.025 | −0.101 | −0.698 | −1.882 | −1.032 | |||||
| 2012 | −0.635 | −0.771 | −0.286 | −0.899 | −0.693 | −0.808 | −0.429 | −0.198 | |||||
| 2013 | −0.578 | −1.139 | 0.364 | −0.259 | −1.060 | −0.894 | −0.089 | 0.101 | |||||
| 2014 | 0.128 | −0.636 | −0.278 | 0.608 | 0.282 | −0.635 | −0.473 | −0.675 | |||||
| 2015 | −0.779 | −0.940 | −0.497 | 0.525 | −0.314 | −1.377 | −0.038 | −0.253 | |||||
| 2016 | 1.627 | 1.744 | 0.340 | 0.806 | 1.984 | 2.592 | 0.898 | 0.439 | |||||
| 2017 | 1.585 | 0.830 | 0.536 | 1.864 | 0.758 | 1.488 | 0.023 | −0.120 | |||||
| 2018 | −0.224 | −0.205 | −0.261 | 0.057 | −0.702 | 0.163 | 1.701 | 0.262 | |||||
| 2019 | −1.419 | −1.117 | −2.541 | −2.318 | −2.112 | −13.932 | −1.567 | −2.036 | |||||
| 2020 | 1.573 | 1.325 | 1.757 | 0.739 | 2.047 | 4.118 | 2.119 | 1.514 | |||||