Year	annual % growth
1972	7.818273594552053
1973	9.973324697303013
1974	-3.8063235980801693
1975	-7.682314986864185
1976	2.5272348063643477
1977	-3.9447764051968193
1978	1.2952210416159033
1979	0.8628440735213729
1980	-0.3524804620523696
1981	3.8239487721654513
1982	-1.7599863066346586
1983	4.8306149238225515
1984	1.556400167205794
1985	-0.8843722318922431
1986	7.960085448894972
1987	3.520049455723509
1988	4.6500887033392075
1989	0.6810171415557988
1990	-1.0818546255697612
1991	-5.666710892959884
1992	1.3945717352694231
1993	6.623707988674482
1994	6.880955212842139
1995	4.695075752660287
1996	1.8163414760324486
1997	4.124493140416362
1998	2.673281122027163
1999	2.9749790258014173
2000	2.566634047899896
2001	6.426164814573923
2002	4.974991908665231
2003	7.598649255461339
2004	3.289725575375641
2005	1.637358831240789
2006	1.1507747946673135
2007	6.113559103612403
2008	-4.3447915899854195
2009	4.565334842847335
2010	2.70070259630684
2011	4.324107033236629
2012	1.9149173645483586
2013	6.463703665083486
2014	3.3906647127797953
2015	4.194770794375444
2016	5.050337769174888
2017	5.2554328980163945
2018	1.9567089645721865
2019	5.129544671589727
2020	-0.11312575278925863
2021	2.8671935309386924