| Effect | Unique Zone | Zone A | Zone B | Zone C |
| January 1 2022 | | | | |
| January 1 2021 | | | | |
| January 1 2020 | 123.22 | | | |
| January 1 2019 | 176.72 | | | |
| January 1 2018 | 88.36 | | | |
| December 1 2017 | 88.36 | | | |
| January 1 2017 | 80.04 | -- | -- | -- |
| January 1 2016 | 73.04 | -- | -- | -- |
| October 1 2015 | 70.1 | -- | -- | -- |
| April 1 2015 | | 70.1 | 68.28 | -- |
| January 1 2015 | | 70.1 | 66.45 | -- |
| January 2014 | | 67.29 | 63.77 | -- |
| January 2013 | | 64.76 | 61.38 | -- |
| November 27 2012 | | 62.33 | 59.08 | -- |
| January 1 2012 | | 62.33 | 60.57 | 59.08 |
| January 1 2011 | | 59.82 | 58.13 | 56.7 |
| January 1 2010 | | 57.46 | 55.84 | 54.47 |
| January 1 2009 | | 54.8 | 53.26 | 51.95 |
| January 1 2008 | | 52.59 | 50.96 | 49.5 |
| January 1 2007 | | 50.57 | 49 | 47.6 |
| January 1 2006 | | 48.67 | 47.16 | 45.81 |
| January 1 2005 | | 46.8 | 45.35 | 44.05 |
| January 1 2004 | | 45.24 | 43.73 | 42.11 |
| January 1 2003 | | 43.65 | 41.85 | 40.3 |
| January 1 2002 | | 42.15 | 40.1 | 38.3 |
| January 1 2001 | | 40.35 | 37.95 | 35.85 |
| January 1 2000 | | 37.9 | 35.1 | 32.7 |
| December 3 1998 | | 34.45 | 31.9 | 29.7 |
| January 1 1998 | | 30.2 | 28 | 26.05 |
| December 3 1996 | | 26.45 | 24.5 | 22.5 |
| April 1 1996 | | 22.6 | 20.95 | 19.05 |
| December4 1995 | | 20.15 | 18.7 | 17 |
| April 1 1995 | | 18.3 | 17 | 15.44 |
| January 1 1995 | | 16.34 | 15.18 | 13.79 |
| January 1 1994 | | 15.27 | 14.19 | 12.89 |
| January 1 1993 | | 14.27 | 13.26 | 12.05 |
| November 11 1991 | | 13330 | 12320 | 11115 |
| November 16 1990 | | 11900 | 11000 | 9920 |
| December 4 1989 | | 10080 | 9325 | 8405 |
| July 1 1989 | | 9160 | 8475 | 7640 |
| January 1 1989 | | 8640 | 7995 | 7205 |
| March 1 1988 | | 8000 | 7405 | 6670 |
| January 1 1988 | | 7765 | 7190 | 6475 |
| December 16 1987 | | 6470 | 5990 | 5395 |
| December 1 1987 | | 5625 | 5210 | 4690 |
| July 1 1987 | | 4500 | 4165 | 3750 |
| April 1 1987 | | 3660 | 3385 | 3045 |
| January 1 1987 | | 3050 | 2820 | 2535 |
| October 22 1986 | | 2480 | 2290 | 2060 |
| June 1 1986 | | 2065 | 1900 | 1675 |
| January 1 1986 | | 1650 | 1520 | 1340 |
| June 4 1985 | | 1250 | 1150 | 1015 |
| January 1 1985 | | 1060 | 975 | 860 |
| June 11 1984 | | 816 | 750 | 660 |
| January 1 1984 | | 680 | 625 | 550 |
| June 14 1983 | | 523 | 478 | 421 |
| January 1 1983 | | 455 | 415 | 365 |
| November 1 1982 | | 364 | 358 | 332 |
| January 1 1982 | | 280 | 275 | 255 |
