Year	annual %
1961	2.1830261556261377
1962	1.3809206042225242
1963	2.686899124292893
1964	2.8242852366138465
1965	2.994578299800324
1966	3.928524398612929
1967	2.6048964078520953
1968	2.3040629799891903
1969	2.7963683852335492
1970	3.8344570846062425
1971	5.38437111275978
1972	6.539215678603554
1973	14.500774830702198
1974	21.710622961532138
1975	10.944805241391691
1976	9.811214621352647
1977	10.576355851607616
1978	8.451851060513576
1979	14.453386844946522
1980	14.882020116728327
1981	9.978914387168466
1982	7.503304020555831
1983	8.25705979617679
1984	10.163689022414246
1985	6.851200072481866
1986	7.76430528268186
1987	11.012044645646156
1988	9.796055393620435
1989	8.99639074391456
1990	12.247747294764281
1991	13.622117597301504
1992	10.234748477289259
1993	10.999431052299371
1994	10.553151204648593
1995	9.58688163953974
1996	8.900004509533233
1997	7.279092977635202
1998	6.878110717352342
1999	6.888834101227431
2000	7.207762797170972
2001	6.012792433817381
2002	5.131939921545964
2003	5.759740766556746
2004	7.611524316085777
2005	6.814731428325246
2006	8.400938217403706
2007	7.115350543356385
2008	11.365091922974841
2009	4.873126919258382
2010	6.8992650940543
2011	8.060755175147662
2012	5.003235907948621
2013	4.337676095157889
2014	4.046710890858243
2015	3.072654403452873
2016	2.644245257504352
2017	4.1813750336502125
2018	3.8842402719391202
2019	3.061879454583277
2020	3.2174023324111403
2021	4.8471564324411816
2022	8.147826227981064
2023	4.544644675780653