Year	per 1,000 people
1970	1.3849500755995834
1975	1.5564577338739214
1980	2.0064771500705483
1981	1.9787374978652474
1985	2.094560140979382
1990	2.528194208611024
1991	2.0852359665999525
2000	1.6370558756159428
2001	1.5328943167873355
2002	1.4787889498328481
2003	1.667967631377484
2005	1.5626523969477784
2006	1.6329370847048166
2007	1.587805820720308
2008	1.639726713322467
2009	1.6358109306877242
2010	1.7226470037563226
2011	1.7408954645951205
2012	1.858010103991194
2013	1.9694519695929014
2014	1.9709668957245274
2015	1.943692157996325
2016	1.9755042629959159
2017	2.1431699652745864