Year	annual %
1973	8.26666666600006
1974	12.9926108375187
1975	8.39237057218445
1976	5.23504273532376
1977	9.88951925933102
1978	8.6897451227484
1979	7.04999999925009
1980	6.92822668563188
1981	7.37478159583807
1982	7.77679842690853
1983	4.71816809275156
1984	1.17746005046669
1985	1.49032181427877
1986	0.953606740192038
1987	0.654844691701656
1988	1.46813288041913
1989	3.34203359055792
1990	9.83363531543402
1991	9.05818836232758
1992	-0.54547121378821
1993	0.382541365165916
1994	2.53443526170792
1995	2.68672756582484
1996	3.55398569684287
1997	0.682191434707604
1998	0.129658287674027
1999	2.99081035923166
2000	1.81294613887089
2001	1.29999999999999
2002	0.888450148074907
2003	0.961350293542112
2004	1.24856443679889
2005	4.14297583631023
2006	3.05701339166722
2007	5.48494983277596
2008	10.5827097865144
2009	4.60959548447787
2010	4.49640287769787
2011	4.8394034987095
2012	3.25514600287211
2013	2.68229684085039
2014	2.90892672858625
2015	3.27170166092133
2016	3.19839776658374
2017	2.17183298510006
2018	0.543133148199567
2019	1.09184802655856
2020	2.101729548274
2021	3.42362947609188
2022	3.98064961990313
2023	3.64216403030709