Year	annual %
1968	14.39594123242786
1969	17.388894021990208
1970	10.735930735930737
1971	13.810505366408416
1972	13.12765425930552
1973	22.93253836811306
1974	7.1717262439374885
1975	19.078147915357217
1976	37.0715743542825
1977	18.897132441660464
1978	16.16141987304055
1979	11.751147790851132
1980	7.832537715606859
1981	19.700755822921487
1982	11.176258343857116
1983	10.982323964068385
1984	20.51906005221932
1985	32.3864571869286
1986	25.38325587484454
1987	28.19345542631612
1988	23.648758715058317
1989	18.335957209951847
1990	4.23024041592679
1991	23.695502986704692
1992	19.46933603321021
1993	65.97370166185115
1994	205.56029743176597
1995	181.699299132101
1996	38.54926736104524
1997	19.04796246915564
1998	38.017058785774424
1999	37.84686747433268
2000	80.54822455745546
2001	28.1621941329841
2002	116.75160125568414
2003	19.87091599412707
2004	32.41350868488978
2005	11.140174030406508
2006	27.14084896607714
2007	28.78554926803333
2008	20.868498171009545
2009	14.887924488206949
2010	10.679443057010014
2011	21.455972153021765
2012	21.139043517435425
2013	11.06773211409679
2014	5.450824246428035
2015	11.754495014081513
2016	52.20754636586331
2017	8.69518164223845
2018	9.064560357578184
2019	5.694463774858549
2020	62.05429954779675
2021	43.90682417239038
2022	46.85485578348647
2023	19.615501357074404