Year annual % 1992 37.810170013886705 1993 42.95629679973041 1994 50.2410537235225 1995 51.45985901044304 1996 48.817961428700784 1997 10.54504865514589 1998 6.158462785963678 1999 8.937789012791924 2000 11.615552870032658 2001 14.78207109145859 2002 9.831877435152549 2003 3.640147317501004 2004 5.794264605446031 2005 7.331047982682961 2006 7.461344539657773 2007 7.43627840440044 2008 5.152804075093115 2009 1.4713732319651598 2010 7.645227987252667 2011 2.348362290449984 2012 3.1752345743067707 2013 2.601236269051043 2014 1.0858708962557984 2015 7.059950335450154 2016 12.160891291542498 2017 7.978012401652705 2018 3.7951186208404692 2019 4.677645346748037 2020 3.1716610674050685 2021 4.550565195845863 2022 6.400948359224984 2023 6.771403990585824