| År | slr 30/11 |
|---|---|
| 2022 | 1.94 |
| 2021 | 0.23 |
| 2020 | -0.1 |
| 2019 | -0.09 |
| 2018 | 0.51 |
| 2017 | 0.49 |
| 2016 | 0.27 |
| 2015 | 0.65 |
| 2014 | 0.9 |
| 2013 | 2.09 |
| 2012 | 1.49 |
| 2011 | 1.65 |
| 2010 | 2.84 |
| 2009 | 3.20 |
| 2008 | 2.89 |
| 2007 | 4.16 |
| 2006 | 3.54 |
| 2005 | 3.26 |
| 2004 | 3.95 |
| 2003 | 4.71 |
| 2002 | 4.85 |
| 2001 | 4.94 |
| 2000 | 5.06 |
| 1999 | 5.57 |
| 1998 | 4.38 |
| 1997 | 6.17 |
| 1996 | 7.02 |
| 1995 | 8.88 |
| 1994 | 10.86 |
| 1993 | 7.54 |
| 1992 | 10.47 |
| 1991 | 9.87 |
| 1990 | 12.66 |
| 1989 | 12.63 |
| 1988 | 11.01 |
| 1987 | 11.58 |