Year	annual %
1961	4.635018524074866
1962	4.888746868446475
1963	4.674475701308367
1964	7.541971050155567
1965	5.039138701216018
1966	4.475411048423169
1967	-0.7744172297723679
1968	16.172401060856643
1969	-3.852687713194541
1970	4.49087969968032
1971	4.938268289352024
1972	4.644237089154629
1973	2.199490262413036
1974	5.380999704842736
1975	19.326216214398826
1976	25.99662693029319
1977	11.372462820627362
1978	9.228393702065162
1979	10.926633977119522
1980	18.265379171328703
1981	13.872746051440686
1982	20.914234048974365
1983	11.1028813560158
1984	1.4194010649594304
1985	34.14517535147684
1986	-3.4290372281515147
1987	-2.3033511827736106
1988	2.6240559401543777
1989	2.4562048001599806
1990	1.8366451056468662
1991	-0.3898156075407826
1992	2.7826470224393773
1993	-3.4330203176627947
1994	24.412569682152878
1995	9.897975858301592
1996	-3.5430457329538854
1997	0.8233810006473874
1998	-0.4141540949823508
1999	4.0847154897584375
2000	8.506601078345597
2001	0.4259386750092915
2002	-2.3718817057485353
2003	1.3364186314078381
2004	-4.439785938363727
2005	4.188437081593847
2006	3.334045938690693
2007	1.8382316504233671
2008	7.077070723614227
2009	0.7116283907541856
2010	4.2113093109751105
2011	4.009115057100516
2012	6.181036176926156
2013	2.4874867776006653
2014	11.893803301677679
2015	2.708263107852815
2016	2.9801140844553373
2017	6.443706287795251
2018	-1.224117158457048
2019	2.3278370514064193
2020	1.9821605562778473
2021	3.185766469003525
2022	5.967924449874104
2023	3.399952990071341