Year	annual % growth
1996	0.623385223353239
1997	2.92905854124422
1998	1.97026490073338
1999	3.27076026535551
2000	1.8785797954844
2001	2.02924212534955
2002	2.55881807599778
2003	2.44081682614943
2004	4.20937556855793
2005	4.21812701374935
2006	4.90136531954228
2007	5.1432067630647
2008	4.43412688663966
2009	4.40984299656817
2010	2.87694782970765
2011	3.36448205620172
2012	3.47261837151174
2013	2.44423574156866
2014	2.23068914432285
2015	1.8981115739582
2016	2.22428047100651
2017	3.32751720864157