Year % 1995 10.9881428571429 1996 10.9881428571429 1997 10.9881428571429 1998 10.9881428571429 1999 9.15678571428571 2000 9.52305714285714 2001 9.52305714285714 2002 9.91985119047619 2003 10.2556 2004 10.2556 2005 10.2556 2006 10.2556 2007 10.2556 2008 10.2556 2009 10.2556 2010 10.37605 2011 10.1972219467061 2012 10.4838045042368 2013 11.141907371532 2014 11.4174465598427 2015 11.1012463363068 2016 10.7647511442635 2017 10.1536636807209 2018 10.6767228850732 2019 11.5226357918998 2020 11.6002303232237 2021 11.5654610099458 2022 10.9287065068347 2023 11.6818258403694