Women's Twenty20 Bowling in Each Season by Nicola Browne
| Season | | Balls | Mdns | Runs | Wkts | BB | Ave | 4wI | 5wI | SRate | Econ |
| 2004 | (England) | | 0 | 0 | 0 | | | | | | 0.00 |
| 2006-07 | (Australia) | 24 | 0 | 19 | 1 | 1-19 | 19.00 | 0 | 0 | 24.00 | 4.75 |
| 2007 | (England) | 114 | 0 | 110 | 7 | 3-14 | 15.71 | 0 | 0 | 16.28 | 5.78 |
| 2007 | (Australia) | 18 | 0 | 14 | 3 | 3-14 | 4.66 | 0 | 0 | 6.00 | 4.66 |
| 2007-08 | (New Zealand) | 120 | 2 | 95 | 4 | 2-17 | 23.75 | 0 | 0 | 30.00 | 4.75 |
| 2008-09 | (Australia) | 6 | 0 | 14 | 0 | | | | | | 14.00 |
| 2008-09 | (New Zealand) | 89 | 0 | 69 | 2 | 1-9 | 34.50 | 0 | 0 | 44.50 | 4.65 |
| 2009 | (England) | 42 | 0 | 47 | 1 | 1-18 | 47.00 | 0 | 0 | 42.00 | 6.71 |
| 2009-10 | (Australia) | 48 | 0 | 48 | 3 | 2-23 | 16.00 | 0 | 0 | 16.00 | 6.00 |
| 2009-10 | (New Zealand) | 162 | 1 | 112 | 7 | 2-11 | 16.00 | 0 | 0 | 23.14 | 4.14 |
| 2010 | (England) | 66 | 0 | 59 | 2 | 1-16 | 29.50 | 0 | 0 | 33.00 | 5.36 |
| 2010 | (West Indies) | 96 | 2 | 77 | 9 | 4-15 | 8.55 | 1 | 0 | 10.66 | 4.81 |
| 2010-11 | (New Zealand) | 354 | 0 | 370 | 16 | 2-16 | 23.12 | 0 | 0 | 22.12 | 6.27 |
| 2011 | (England) | 48 | 0 | 57 | 2 | 2-17 | 28.50 | 0 | 0 | 24.00 | 7.12 |
| 2011-12 | (New Zealand) | 192 | 1 | 163 | 8 | 4-17 | 20.37 | 1 | 0 | 24.00 | 5.09 |
| 2012-13 | (Sri Lanka) | 84 | 1 | 67 | 4 | 3-13 | 16.75 | 0 | 0 | 21.00 | 4.78 |
| 2012-13 | (Australia) | 6 | 0 | 10 | 0 | | | | | | 10.00 |
| 2012-13 | (New Zealand) | 114 | 4 | 80 | 3 | 2-9 | 26.66 | 0 | 0 | 38.00 | 4.21 |
| 2013-14 | (West Indies) | 96 | 1 | 61 | 4 | 2-18 | 15.25 | 0 | 0 | 24.00 | 3.81 |
| 2013-14 | (Bangladesh) | 72 | 0 | 72 | 3 | 2-16 | 24.00 | 0 | 0 | 24.00 | 6.00 |
| 2013-14 | (New Zealand) | 102 | 0 | 117 | 4 | 1-11 | 29.25 | 0 | 0 | 25.50 | 6.88 |
| 2013-14 | (Australia) | 139 | 1 | 136 | 4 | 2-29 | 34.00 | 0 | 0 | 34.75 | 5.87 |
| 2014-15 | (Australia) | 126 | 1 | 177 | 5 | 2-24 | 35.40 | 0 | 0 | 25.20 | 8.42 |
| 2014-15 | (New Zealand) | 89 | 0 | 110 | 1 | 1-16 | 110.00 | 0 | 0 | 89.00 | 7.41 |