Year annual % 1990 17.2791811684895 1991 25.8186705671098 1992 26.220213626085 1993 0.673757277386372 1994 1.42800163986341 1995 5.95133830053159 1996 1.54596823705317 1997 1.43412666636782 1998 3.32464044488574 1999 4.2276753067021 2000 6.30012395836252 2001 1.75242631853581 2002 0.43277237665886 2003 15.9106965575684 2004 16.5215833233368 2005 27.3908453723395 2006 37.5840418221749 2007 13.6188759426292 2008 16.7051243996574 2009 1.77102924305261 2010 16.10261759621 2011 8.99929083812954 2012 11.5159706830517 2013 4.32935157395693 2014 2.61589668293773 2015 2.97228935440204 2016 5.6689484503468 2017 10.3565023612758 2018 7.0590844257119 2019 9.40290765798821 2020 4.69393802898557 2021 11.4999999994591 2022 10.9921489980271 2023 7.39320302655362