Year	annual %
1961	20.31069752905084
1962	28.8718416496811
1963	25.591154346679772
1964	28.77461731943555
1965	21.232934926485342
1966	25.60346242517801
1967	29.018262935581305
1968	10.275310559820454
1969	7.795830033937918
1970	6.467874639206286
1971	31.271063884229164
1972	64.24478591493636
1973	65.53528737014398
1974	30.630441370412
1975	197.6973645431873
1976	438.3227797398164
1977	159.42717769645043
1978	161.3721720041567
1979	147.37704403447287
1980	95.79042461283521
1981	105.27636638006351
1982	194.53529966344314
1983	380.1585285219193
1984	611.1963038919125
1985	607.4474978300848
1986	77.29223668641333
1987	127.53991805908643
1988	381.24634440951996
1989	3046.0911520111895
1990	2078.316818069785
1991	140.50237866101241
1992	16.071993535694546
1993	-3.561095575765748
1994	2.8493397150930235
1995	3.1651233901651636
1996	-0.05237549659041463
1997	-0.4639131311642899
1998	-1.7052796240008519
1999	-1.8365583922066406
2000	1.0372871007317457
2001	-1.0957677183367878
2002	30.55520405390297
2003	10.495703021549602
2004	18.363354249203283
2005	10.317511198240553
2006	13.741052485915233
2007	14.939925024583474
2008	23.1711649813124
2009	15.377649370892115
2010	20.91512427204698
2011	23.70347218395932
2012	22.3148806733049
2013	23.94879841627464
2014	40.282971631550595
2015	26.579991602470713
2016	41.119379988227905
2017	26.00637928190794
2018	42.03366895750307
2019	49.195579059661185
2020	40.08308780119927
2021	53.8404499043736
2022	69.47123955121438
2023	133.83986729143683