Twenty20 Bowling in Each Season by Gareth Andrew
| Season | | Balls | Mdns | Runs | Wkts | BB | Ave | 4wI | 5wI | SRate | Econ |
| 2003 | (England) | 36 | 0 | 53 | 2 | 2-36 | 26.50 | 0 | 0 | 18.00 | 8.83 |
| 2004 | (England) | 81 | 0 | 128 | 2 | 1-31 | 64.00 | 0 | 0 | 40.50 | 9.48 |
| 2005 | (England) | 168 | 0 | 227 | 15 | 4-22 | 15.13 | 1 | 0 | 11.20 | 8.10 |
| 2006 | (England) | 114 | 0 | 195 | 4 | 3-36 | 48.75 | 0 | 0 | 28.50 | 10.26 |
| 2007 | (England) | 136 | 0 | 177 | 5 | 1-20 | 35.40 | 0 | 0 | 27.20 | 7.80 |
| 2008 | (England) | 180 | 0 | 252 | 8 | 2-20 | 31.50 | 0 | 0 | 22.50 | 8.40 |
| 2009 | (England) | 175 | 0 | 225 | 7 | 3-19 | 32.14 | 0 | 0 | 25.00 | 7.71 |
| 2010 | (England) | 188 | 0 | 315 | 9 | 2-26 | 35.00 | 0 | 0 | 20.88 | 10.05 |
| 2011 | (England) | 263 | 0 | 343 | 19 | 3-17 | 18.05 | 0 | 0 | 13.84 | 7.82 |
| 2012 | (England) | 155 | 0 | 211 | 7 | 3-20 | 30.14 | 0 | 0 | 22.14 | 8.16 |
| 2012-13 | (New Zealand) | 102 | 0 | 150 | 3 | 1-11 | 50.00 | 0 | 0 | 34.00 | 8.82 |
| 2013 | (England) | 153 | 0 | 216 | 6 | 3-27 | 36.00 | 0 | 0 | 25.50 | 8.47 |
| 2014 | (England) | | 0 | 0 | 0 | | | | | | 0.00 |
| 2016 | (England) | 120 | 0 | 178 | 8 | 2-19 | 22.25 | 0 | 0 | 15.00 | 8.90 |