Year	years
1994	81.7
1995	79.9
1996	81.6
1997	80.4
1998	82.1
1999	82.9
2000	79.9
2001	82.4
2002	82.3
2003	81.6
2004	85.1
2005	84.1
2006	83.1
2007	83.6
2008	85.5
2009	83.6
2010	84.3
2011	84.2
2012	85.2
2013	83.9
2014	83.2
2015	84.5
2016	84
2017	86
2018	85.5
2019	85.8
2020	83.4
2021	86.4
2022	85.6