Annual data on total revenue collected.
| Year | Total revenue assessed ($ billion) |
|---|---|
| 2023-24 | 31.41 |
| 2022-23 | 26.95 |
| 2021-22 | 25.77 |
| 2020-21 | 19.61 |
| 2019-20 | 18.94 |
| 2018-19 | 19.09 |
| 2017-18 | 18.54 |
| 2016-17 | 17.21 |
| 2015-16 | 15.70 |
| 2014-15 | 14.32 |
| 2013-14 | 13.21 |
| 2012-13 | 11.34 |
| 2011-12 | 11.06 |
| 2010-11 | 11.23 |
| 2009-10 | 10.26 |
| 2008-09 | 9.33 |
| 2007-08 | 9.63 |
| 2006-07 | 8.63 |
| 2005-06 | 7.93 |
| 2004-05 | 7.61 |
| 2003-04 | 7.46 |
| 2002-03 | 6.85 |
| 2001-02 | 6.46 |
| 2000-01 | 6.35 |
