Year	annual %
1991	139.826806929829
1992	945.030521954821
1993	860.457221291034
1994	276.441127471841
1995	38.7375203768224
1996	27.8519773445647
1997	12.5029398170542
1998	9.46173017171613
1999	39.7816660136116
2000	27.328751985976
2001	12.0892509733681
2002	9.82740206371066
2003	14.8659724616995
2004	7.9870868570528
2005	9.34414407593009
2006	13.4181412403617
2007	15.9087149618352
2008	9.2442488257698
2009	2.16939170451238
2010	11.0709511853899
2011	8.19079859862242
2012	7.42422201997522
2013	3.92385122182326
2014	6.3521842675855
2015	11.5743149591168
2016	3.5508738308871
2017	6.25246649143298
2018	3.21103213223728
2019	5.35171200346649
2020	5.57500940096507
2021	6.38172855134019
2022	19.2532036308322
2023	8.70839048786753