Year annual % growth 1997 6.014402303297771 1998 1.0592823134804519 1999 6.200789789230242 2000 -2.0363381674252707 2001 1.3339234437459027 2002 -3.420516149808819 2003 -3.1450379367645667 2004 1.6171134931372677 2005 1.897751751754484 2006 0.3535153790494121 2007 4.324610752549177 2008 -1.6694026503802917 2009 2.4105698108378704 2010 3.684597836169033 2011 -6.58176700838203 2012 13.500352699392934 2013 4.920530837888151 2014 9.137302905754837 2015 9.258556768358787 2016 6.173768962722747 2017 6.411405631073791 2018 5.863788214778822 2019 5.424140385230828 2020 1.422490820240597 2021 5.41940552961637 2022 5.251941845679411 2023 4.5180217137212395