Year	Percent change (Units)
1993	109.200
1994	35.900
1995	25.000
1996	17.600
1997	8.074
1998	4.295
1999	2.114
2000	2.633
2001	2.526
2002	1.963
2003	2.940
2004	6.187
2005	6.890
2006	6.571
2007	10.081
2008	15.253
2009	3.259
2010	-1.224
2011	4.222
2012	2.285
2013	0.011
2014	0.690
2015	0.213
2016	0.099
2017	2.894
2018	2.554
2019	2.747
2020	0.081
2021	3.239
2022	17.245
2023	9.058
2024	1.954
2025	3.611
2026	2.199
2027	2.250
2028	2.261
2029	2.318