Year	annual %
1961	3.278445997779599
1962	1.6674389844153268
1963	3.0139171557781737
1964	3.54797755518112
1965	2.9231537509407843
1966	4.120046535334836
1967	1.2803753506749374
1968	2.3676421396913554
1969	4.838560996096547
1970	3.859552080913687
1971	3.588168432693422
1972	5.553683675971314
1973	10.203841481163735
1974	14.160909161626563
1975	10.944805241391691
1976	10.291984951580943
1977	10.4461251876848
1978	9.159910193217343
1979	11.421245087751515
1980	12.740934927816937
1981	10.808507350147778
1982	11.59255375129132
1983	10.960140815036844
1984	11.86385524785144
1985	9.587877902025866
1986	8.024221996959753
1987	9.611629657822021
1988	9.15994114057903
1989	10.408283731300592
1990	10.610414719870512
1991	8.671014741171646
1992	7.2832831603953
1993	11.605429309027535
1994	23.831025219740525
1995	11.06400010587798
1996	9.998125319528476
1997	5.088057586172567
1998	6.947491092706159
1999	7.758437153618573
2000	8.844396247009577
2001	6.553990656449784
2002	3.8624345857023386
2003	5.814344133959814
2004	7.688401425345788
2005	7.562699744812349
2006	7.5567994224615305
2007	6.888389103197554
2008	9.750922988128906
2009	3.117229956299923
2010	5.644330860973355
2011	9.391655492037316
2012	5.308339371789074
2013	4.134331895049954
2014	2.6158966829377306
2015	2.9722893544020366
2016	4.781000290805508
2017	4.080784811961834
2018	4.215028414590563
2019	2.8560341198774495
2020	3.1716610674050685
2021	5.354275317635441
2022	8.642277522213249
2023	6.609305352586588