Year | Value | 2022 | 83.682041702145 | 2021 | 86.187232517028 | 2020 | 83.972894883339 | 2019 | 57.640178578266 | 2018 | 57.242168236707 | 2017 | 53.455151589342 | 2016 | 50.760509922729 | 2015 | 48.29444268348 | 2014 | 47.018360243467 | 2013 | 45.11000913857 | 2012 | 36.449833028618 | 2011 | 35.306429206242 | 2010 | 33.692281710342 | 2009 | 30.908208407968 | 2008 | 25.45550066502 | 2007 | 22.990853560914 | 2006 | 22.777454284492 | 2000 | 18.752004279097 | 1999 | 19.641144371261 | 1998 | 20.951732858008 | 1997 | 21.723796499251 | 1996 | 34.222776392353 | 1995 | 33.998250218723 | 1994 | 34.866523473458 | 1993 | 34.434023285899 | 1992 | 30.630427790286 | 1991 | 27.976703223235 | 1990 | 24.418825015793 |
|