Year	annual %
1961	19.130434782608692
1962	13.868613138686134
1963	16.02564102564104
1964	25.414364640883964
1965	23.348017621145377
1966	13.928571428571423
1967	8.777429467084653
1968	6.916426512968295
1969	13.207547169811315
1970	36.666666666666664
1971	8.188153310104534
1972	23.993558776167472
1973	23.116883116883113
1974	33.64978902953587
1975	15.785319652722956
1976	23.99454669393321
1977	23.584387025838375
1978	61.07651245551602
1979	92.01877934272298
1980	83.48914137782253
1981	68.67847625019596
1982	71.95631970260223
1983	103.34549385218214
1984	127.21932808845418
1985	156.54645626922766
1986	53.977995522503754
1987	106.51489622538143
1988	620.9512522816663
1989	1917.28170515126
1990	6384.9159121494085
1991	230.59502238985004
1992	88.1788916992412
1993	71.79706496902455
1994	37.217010320277105
1995	29.264006883575313
1996	37.24476702221509
1997	30.78206398041261
1998	17.327128610237345
1999	14.490217546532108
2000	-0.39944185180134184
2001	0.5638913234778962
2002	4.329653534375328
2003	-2.1368988902863695
2004	3.2599219416715233
2005	17.095267801134586
2006	8.045161039507231
2007	29.403839604813953
2008	22.764071154642366
2009	4.5704793332031555
2010	21.05465527575416
2011	11.736018765486833
2012	15.015022872027501
2013	16.47898483153592
2014	6.265150578484177
2015	13.387067420352542
2016	2.7561371115898368
2017	9.330913989023287
2018	5.43327443052405
2019	8.318375914380018
2020	38.28529602965113
2021	2.8801399159515912
2022	9.31212092014772