First-Class Bowling in Each Season by Dieter Klein
| Season | | Balls | Mdns | Runs | Wkts | BB | Ave | 5wI | 10wM |
| 2007-08 | (South Africa) | 36 | 1 | 27 | 0 | | | | |
| 2008-09 | (South Africa) | 114 | 2 | 90 | 1 | 1-45 | 90.00 | 0 | 0 |
| 2010-11 | (South Africa) | 143 | 9 | 64 | 1 | 1-23 | 64.00 | 0 | 0 |
| 2011-12 | (South Africa) | 761 | 27 | 428 | 20 | 7-37 | 21.40 | 1 | 0 |
| 2012-13 | (South Africa) | 1907 | 54 | 1122 | 47 | 5-1 | 23.87 | 2 | 0 |
| 2013-14 | (South Africa) | 1254 | 29 | 809 | 21 | 5-59 | 38.52 | 1 | 0 |
| 2014-15 | (South Africa) | 1260 | 24 | 870 | 36 | 8-72 | 24.16 | 2 | 1 |
| 2014-15 | (Namibia) | 222 | 8 | 115 | 5 | 3-55 | 23.00 | 0 | 0 |
| 2015-16 | (South Africa) | 818 | 17 | 479 | 23 | 5-50 | 20.82 | 2 | 0 |
| 2016 | (England) | 264 | 5 | 211 | 9 | 4-107 | 23.44 | 0 | 0 |
| 2017 | (England) | 1236 | 21 | 958 | 28 | 6-80 | 34.21 | 2 | 0 |
| 2018 | (England) | 564 | 17 | 400 | 5 | 2-23 | 80.00 | 0 | 0 |
| 2019 | (England) | 672 | 15 | 467 | 16 | 4-113 | 29.18 | 0 | 0 |
| 2020 | (England) | 570 | 10 | 332 | 9 | 3-44 | 36.88 | 0 | 0 |
| 2021 | (England) | 323 | 5 | 254 | 4 | 2-74 | 63.50 | 0 | 0 |