Year	annual %
1966	3.932998240142439
1967	3.9366597755996082
1968	4.399274072039788
1969	4.4333987047007355
1970	5.4247392538376005
1971	6.9613743335271465
1972	6.91008466334474
1973	10.274553703448042
1974	15.757296221994501
1975	13.120019411895981
1976	9.343511011234561
1977	8.788178026466149
1978	7.24405998436319
1979	10.404987799504838
1980	11.758155747305423
1981	10.693957607658604
1982	8.827078400984504
1983	5.900721036604928
1984	5.310980172043379
1985	4.867042728053789
1986	4.150668939876169
1987	4.841889695507959
1988	4.29757874863882
1989	5.43581244333582
1990	5.769869904630838
1991	3.9248311735183634
1992	3.7117126970505723
1993	3.5179441523697648
1994	3.0349791294123705
1995	3.2760579002834547
1996	2.8115314352770824
1997	2.3168775480781676
1998	2.0807336761724997
1999	2.3019920192075602
2000	3.01797428833477
2001	2.483522966054764
2002	2.7257425856219726
2003	2.4518279154123235
2004	3.0424239980269476
2005	2.935328139921296
2006	3.0838367335286563
2007	3.358471201773277
2008	3.9453274576743667
2009	1.3287534124704337
2010	1.4303557455005063
2011	1.8334102445566316
2012	1.9116421347553967
2013	1.3068161918534216
2014	1.3277854278746304
2015	1.3237145324991175
2016	0.9242492028647362
2017	1.986797417373026
2018	2.013401108900048
2019	1.7840504205757597
2020	1.317150028055174
2021	3.078774163956325
2022	5.6835466331717726
2023	5.27321445450562