Year	annual % growth
1981	3.7374673167683454
1982	5.91838316014379
1983	4.743093040787485
1984	4.448284548612122
1985	1.203912519585387
1986	1.9215193987532047
1987	2.2850279798825284
1988	2.3274039493447134
1989	-2.1122272481434123
1990	4.300235406076425
1991	-5.275093750253674
1992	9.352197526922936
1993	2.621373546621598
1994	-5.992170255885455
1995	1.8951525596179835
1996	-1.483410617178464
1997	3.9454151243349713
1998	1.0298176251924076
1999	2.7209095719432383
2000	11.351044349450618
2001	2.584461649636637
2002	1.891498472296945
2003	1.7291693208355525
2004	2.298774147678401
2005	3.2218628152476754
2006	2.835803516970927
2007	0.8110113759014297
2008	1.8284635830391807
2009	5.617006202217922
2010	-0.45919642523587356
2011	3.919296645628606
2012	3.884586557347319
2013	5.032834990197472
2014	3.637375432322699
2015	6.421914329579664
2016	3.8584825384856174
2017	5.48488645941832
2018	5.425124479570016
2019	1.8754869125762212
2020	-5.476862550014033
2021	2.6625777527544727