Year	Percent change (Units)
1993	142.445
1994	-6.205
1995	11.811
1996	7.704
1997	6.864
1998	-7.789
1999	-18.486
2000	4.221
2001	8.707
2002	16.747
2003	20.826
2004	16.189
2005	-23.039
2006	33.909
2007	83.225
2008	16.456
2009	-20.802
2010	7.397
2011	14.276
2012	25.810
2013	12.614
2014	-18.201
2015	-0.225
2016	-11.178
2017	-15.590
2018	9.393
2019	9.307
2020	-2.982
2021	22.227
2022	17.193
2023	20.546
2024	1.321
2025	2.862
2026	7.573
2027	5.217
2028	6.395
2029	0.000