Year	annual %
1961	4.408712997637721
1962	5.5512678207431065
1963	5.092057727991033
1964	6.454767038117424
1965	5.4623351794059545
1966	5.555388978492346
1967	3.820855141875626
1968	5.942602965496775
1969	5.521271872839378
1970	2.7599000731028553
1971	3.7643285359277883
1972	5.379506175257305
1973	6.037336268002491
1974	1.0818120138490315
1975	0.11885356514657985
1976	4.730092817415411
1977	3.7491834104797874
1978	4.393935598407566
1979	3.913181741763097
1980	1.2521967821499231
1981	2.1415443217509136
1982	0.15920966347995602
1983	2.8702101043911483
1984	4.720894679244807
1985	3.7050171267520824
1986	3.0208823404367564
1987	3.5379214093109113
1988	4.52779235239862
1989	3.779834216140742
1990	2.938966287817621
1991	1.144529194745374
1992	2.0901592435264433
1993	1.3954269866284221
1994	3.21792750335041
1995	2.670180899272509
1996	3.105410079285221
1997	3.634314062785762
1998	3.0351181916852426
1999	3.4254873782511623
2000	4.09296291517127
2001	1.4163537833124593
2002	1.5398467729875023
2003	2.033096343920576
2004	3.265478599727061
2005	2.8199121535409546
2006	3.026334449041258
2007	2.59522803757892
2008	0.3850994919479831
2009	-3.3972493503999033
2010	2.9689877958700066
2011	1.8787340093445266
2012	1.3931159110521492
2013	1.6090797804848762
2014	2.1765427800931576
2015	2.502074361981414
2016	1.8513563260574841
2017	2.5861054734489812
2018	2.3438286395450376
2019	1.7994373215387327
2020	-3.953348559013534
2021	5.714652061396762
2022	2.778351221720527
2023	1.666535385659813