Year annual % 1996 10.066159142306645 1997 9.536972114716022 1998 7.374780574380054 1999 7.9453746668189495 2000 8.593378437602667 2001 8.08926479905061 2002 9.548934361533853 2003 10.450305981399183 2004 10.478551529216261 2005 10.902998553789644 2006 13.295881996894693 2007 14.705860403013688 2008 10.086039928344775 2009 8.532755388162514 2010 10.335251380699546 2011 8.9867728077148 2012 8.64543670570066 2013 7.132227740493306 2014 8.456223785704566 2015 6.385139207716392 2016 6.826359838710346 2017 7.348349036173957 2018 6.417432990278883 2019 6.12499504470658 2020 1.7048629239714899 2021 8.561999199958038 2022 3.06718944084281