Year | |
---|---|
1997 | 79.7 |
1998 | 75.7 |
1999 | 59.6 |
2000 | 59.1 |
2001 | 53.5 |
2002 | 58.6 |
2003 | 61.1 |
2004 | 65.9 |
2005 | 72.8 |
2006 | 71.9 |
2007 | 78.9 |
2008 | 80.7 |
2009 | 69.7 |
2010 | 73.9 |
2011 | 68.8 |
2012 | 66.3 |
2013 | 67.9 |
2014 | 67.4 |
2015 | 66.5 |
2016 | 70.0 |
2017 | 73.4 |
2018 | 74.6 |
2019 | 71.2 |
2020 | 70.7 |
2021 | 70.6 |
2022 | 72.3 |
2023 | 69.0 |
2024 | 65.9 |