Year annual % growth 1991 3.569948807076557 1992 1.2366904094753153 1993 3.105803053556926 1994 2.1057232722663173 1995 5.8351093069661175 1996 3.8693433484172175 1997 2.4489939893307877 1998 1.9067700302420292 1999 3.9712525761892863 2000 3.8362601478718403 2001 5.20421456568188 2002 4.766061146908001 2003 3.00733618420972 2004 4.595176982236509 2005 5.15331708984219 2006 3.4398195944312278 2007 3.735997028495717 2008 7.22258569766565 2009 4.213008026390511 2010 3.20096346359027 2011 2.4848617415006657 2012 3.3665293442133333 2013 2.7567334747510728 2014 6.889824871502029 2015 5.354372445910542 2016 4.7624294651164405 2017 5.912111414918499 2018 3.4357926017986102 2019 3.5000000000828635 2020 3.066266640549415 2021 3.699999999892853 2022 3.8000000002141263 2023 3.399999999802745