Year % 1995 21.5883651768703 1996 35.6480669489614 1997 75.7132697326887 1998 58.5692182122724 1999 33.0419846023096 2000 48.118489510489496 2001 41.908855867458996 2002 41.2004406165439 2003 23.3454984406977 2004 29.8683397168953 2005 34.2128616011275 2006 29.0331246351334 2007 44.835825204776505 2008 76.8012142494071 2009 40.0450364464335 2010 28.983257216317597 2011 27.0375819304294 2012 21.4676615823323 2013 28.516062404598703 2014 21.4915130409198 2015 21.2429858372735 2016 21.2337891194118 2017 17.7675162027953 2018 21.4995 2019 22.5271 2020 26.4359 2021 35.0434 2022 31.9291