| 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | |
| 3.6 | 2.3 | 3.9 | 8 | 6.6 | 0.8 | 1.9 | 0.4 | 1.8 | 5.2 | 2.3 | 1.5 | 2 | 4.1 | 4.4 | 5.3 | 7.4 | 4.3 | 0.8 | 4.4 | 5 | 2.9 | 2.5 | 2.3 | 1.5 | 1.7 | 2 | 2.4 | 2.7 | 3 | 6.5 | 8 | 3.4 | |
| 1.2 | 0.3 | 1.5 | 4.5 | 3.5 | -1 | 0.7 | 0.1 | 0.6 | 2.6 | 0.8 | 0.8 | 1 | 1.9 | 2.2 | 3 | 2 | 1.7 | -1.2 | 0.8 | 2 | -3.2 | -2.1 | -1.6 | 0.3 | -4.3 | 3.6 | 4.5 | 5.8 | 5.3 | 7.4 | 7.4 | 4.2 |