Tax Rate History
| YEAR | MAINTENANCE & OPERATIONS | INTEREST & SINKING | TOTAL TAX RATE |
| 2009 | 1.04 | 0.283 | 1.323 |
| 2010 | 1.04 | 0.3499 | 1.3899 |
| 2011 | 1.04 | 0.3499 | 1.3899 |
| 2012 | 1.04 | 0.3799 | 1.4199 |
| 2013 | 0.9957 | 0.2511 | 1.2468 |
| 2014 | 1.04 | 0.3046 | 1.3446 |
| 2015 | 1.04 | 0.296 | 1.336 |
| 2016 | 1.04 | 0.296 | 1.336 |
| 2017 | 1.04 | 0.268 | 1.308 |
| 2018 | 1.04 | 0.227 | 1.267 |
| 2019 | 0.97 | 0.233 | 1.203 |
| 2020 | 0.916 | 0.245 | 1.161 |
| 2021 | 0.872 | 0.201 | 1.073 |
| 2022 | 0.8546 | 0.1534 |
1.008
|
| 2023 | 0.6692 | 0.1326 |
0.8018
|