Year	Percent change (Units)
1994	-21.216
1995	36.398
1996	25.418
1997	46.340
1998	-15.846
1999	17.938
2000	17.100
2001	7.161
2002	8.250
2003	10.356
2004	14.672
2005	-1.556
2006	8.147
2007	5.677
2008	1.334
2009	-12.654
2010	6.407
2011	31.700
2012	11.108
2013	-17.036
2014	2.589
2015	1.318
2016	1.744
2017	8.953
2018	5.917
2019	0.151
2020	0.815
2021	9.641
2022	-5.370
2023	11.074
2024	3.963
2025	1.197
2026	1.300
2027	1.681
2028	1.661
2029	1.673