Year | Value | 2021 | 80.273573414351 | 2020 | 77.961154166833 | 2019 | 73.599663309945 | 2017 | 58.46403560674 | 2016 | 53.042375018249 | 2015 | 50.676723477945 | 2014 | 48.46900902481 | 2013 | 45.157611799074 | 2012 | 42.68829843264 | 2011 | 42.352278857511 | 2010 | 35.587839930684 | 2009 | 31.921555040958 | 2008 | 27.722073691461 | 2007 | 24.535896789116 | 2006 | 20.881253089265 | 2005 | 17.997629732129 | 2004 | 15.466816970431 | 2003 | 13.580213093799 | 2002 | 10.72978737655 | 2001 | 6.9650772413507 | 2000 | 4.2752680129596 | 1999 | 2.9813662273436 | 1998 | 1.9459822385031 | 1997 | 0.9051596233774 | 1996 | 0.55479761534167 | 1995 | 0.17090455293981 | 1994 | 0.014606216263221 |
|