Year	annual %
1977	11.9658119658116
1978	9.04398827010362
1981	12.8572077921642
1982	10.831809773817099
1983	10.62075364802405
1984	10.284098213138
1985	9.09050118887493
1986	8.73355918706675
1987	8.189074494810805
1988	9.071158757800244
1989	8.929941428940264
1990	10.33267205429485
1991	12.2751729438893
1992	10.0510173716465
1993	9.991012982153045
1994	20.5661948376355
1995	11.70864711542575
1996	8.97715233826453
1997	7.08761762948726
1998	6.88054637817278
1999	4.68076300543016
2000	4.06396201382596
2001	5.077450455224955
2002	4.24026660688645
2003	5.140448250959976
2004	4.504603316038985
2005	6.42755278070092
2006	6.07271879734293
2007	6.25098782993553
2008	10.3607288954998
2009	4.21903052064628
2010	4.277070529151225
2011	6.16077553828671
2012	5.01804155429246
2013	4.76502404779142
2014	3.561794363819935
2015	3.16909796750829
2016	3.01913975139128
2017	3.66699702675925
2018	3.35102208952149
2019	2.7264303738882
2020	2.99313555869917
2021	4.22278962033194
2022	8.33370630096231
2023	6.148858723881364