| Series | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | (9.6) | 11.9 | (10.4) | 17.7 | 3.3 | 27.2 | 15.6 | (0.1) | (6.6) | 13.1 | (27.0) |
| B | (10.2) | 11.1 | (11.0) | 17.1 | 2.7 | 26.4 | 14.9 | (0.2) | (7.1) | 12.6 | (27.2) |
| C | 2.8 | 26.4 | 14.8 | (0.3) | (7.1) | 12.6 | (27.2) | ||||
| F | (8.7) | 13.4 | (9.5) | 18.9 | 4.4 | 28.5 | 16.9 | 0.4 | (5.6) | 14.1 | (26.5) |
| T8A | (9.6) | 11.7 | (10.6) | 17.8 | 3.3 | 27.1 | 15.7 | 0.1 | (6.7) | 12.4 | (27.0) |
| T8B | 2.9 | 26.8 | 15.0 | (0.2) | (7.1) | 12.6 | (27.2) | ||||
| T8C | 14.8 | (0.3) | (7.1) | 12.4 | (27.2) | ||||||
| L | (10.1) | 11.1 | (11.0) | 17.2 | 2.8 | 26.6 | 15.0 | (0.2) |
