Year	annual %
1971	3.287800763362796
1972	5.011127074422419
1973	4.546188096557557
1974	-0.30958962216202224
1975	1.4441614080513006
1976	3.8053404928204486
1977	2.525033865199717
1978	3.1348608782741962
1979	2.625253275243182
1980	0.08377396396315362
1981	0.49874296451586986
1982	0.8395241381798257
1983	2.770510700045861
1984	2.6864597631447396
1985	3.1761882995442505
1986	3.486079393441628
1987	3.1151086338851286
1988	3.6435460568521307
1989	2.8443914839076
1990	2.1592106228822416
1991	0.40361626974249987
1992	2.0750735061025267
1993	1.2752109631753967
1994	2.4681753445082677
1995	2.0634457132313173
1996	2.5488089352052157
1997	2.482443515683613
1998	2.7060419230563753
1999	3.5762765702422854
2000	3.574505535656087
2001	2.006776437556823
2002	1.7886290085466783
2003	1.8701242380982421
2004	2.6709761082370136
2005	2.596426216523355
2006	2.180154995201235
2007	2.2176410244697706
2008	0.05545457711357926
2009	-2.042576067584264
2010	1.2924180670862455
2011	1.019519319676192
2012	0.6859088704557621
2013	0.9655882381580199
2014	1.5036548331110993
2015	1.6471826725202021
2016	1.571303666131783
2017	2.002612870882416
2018	1.8826226503280168
2019	1.3071034579913459
2020	-5.4004966170780335
2021	6.425700077757867
2022	2.9609358528387872