Tax Rates
| 2023 | $16.41 |
| 2022 | $18.20 |
| 2021 | $17.99 |
| 2020 | $18.64 |
| 2019 | $18.29 |
| 2018 | $18.62 |
| 2017 | $18.22 |
| 2016 | $18.08 |
| 2015 | $17.66 |
| 2014 | $17.43 |
| 2013 | $17.10 |
| 2012 | $16.47 |
| 2011 | $15.10 |
| 2010 | $14.07 |
| 2009 | $13.87 |
| 2008 | $12.78 |
| 2007 | $12.15 |
| 2006 | $12.48 |
| 2005 | $12.50 |
| 2004 | $11.93 |
| 2003 | $13.01 |
| 2002 | $14.32 |