Year	Percent change (Units)
1993	171.473
1994	-6.108
1995	13.381
1996	7.070
1997	5.868
1998	-6.307
1999	-18.694
2000	3.112
2001	6.769
2002	12.862
2003	21.794
2004	10.842
2005	-26.170
2006	41.038
2007	72.642
2008	26.572
2009	-19.482
2010	4.955
2011	16.127
2012	24.752
2013	8.618
2014	-17.729
2015	0.211
2016	-10.012
2017	-16.322
2018	8.541
2019	9.183
2020	-1.631
2021	23.119
2022	16.465
2023	20.538
2024	0.276
2025	2.019
2026	7.438
2027	5.094
2028	6.395
2029	0.000