Year	annual %
1961	45.702005730658996
1962	63.12684365781697
1963	64.37613019891496
1964	78.51118445177883
1965	73.66474938373041
1966	21.078779276082305
1967	51.70965220789361
1968	43.52501770880288
1969	31.43844221105565
1970	28.735279057859547
1971	37.88348845225759
1972	24.999999999999876
1973	43.07692307692322
1974	35.48387096774194
1975	42.857142857142804
1976	38.88888888888898
1977	44.80000000000041
1978	45.58011049723744
1979	73.05502846299797
1980	61.40350877192956
1981	88.11141304347821
1982	84.03755868544624
1983	135.8124018838302
1984	270.1256553216283
1985	322.46728719816485
1986	289.2115696761658
1987	213.66791185591586
1988	2732.9505964244167
1989	1904.888594817506
1990	640.8685147478348
1991	501.6165875034329
1992	1749.382730930263
1993	3280.652727098344
1994	1102.3832524277568
1995	44.302154919907025
1996	31.034904227270342
1997	17.243320674262108
1998	12.019348129373958
1999	18.115344500041033
2000	19.704637239010538
2001	38.4078080654788
2002	6.143616107314874
2003	18.58424657904523
2004	13.566830413526098
2005	18.352303755526194
2006	16.75810283838661
2007	22.019973793559082
2008	17.882458179821548
2009	15.694679923359967
2010	13.718886872029504
2011	16.5779267982988
2012	13.20689897905482
2013	10.137689839027447
2014	12.911887048536446
2015	11.558967546688818
2016	11.39080223944841
2017	4.190150912990948
2018	7.104205463751828
2019	8.13626147855937
2020	17.024271591651885
2021	12.259208254563573
2022	13.277175867313817
2023	14.582023041061806