Year	annual % growth
1981	17.73596692131521
2008	4.108015219043622
2009	-10.880460437298623
2010	2.3088990216202205
2011	-1.6778973288139554
2012	-1.8443712889795023
2013	3.433789386230842
2014	5.592982154875784
2015	8.048342794131003
2016	-0.9475217878380278
2017	-6.396170933807781
2018	3.3955234568193333
2019	3.758947800455786
2020	-0.2674195863075113
2021	-0.6830407899400086