Year	Percent change (Units)
1996	12.833
1997	11.428
1998	50.137
1999	34.817
2000	9.341
2001	16.775
2002	13.281
2003	4.812
2004	6.552
2005	4.706
2006	10.501
2007	-11.390
2008	-7.623
2009	10.011
2010	8.385
2011	13.854
2012	10.806
2013	18.980
2014	14.244
2015	21.970
2016	13.243
2017	6.393
2018	15.789
2019	18.866
2020	1.123
2021	26.923
2022	-8.732
2023	-13.258
2024	10.604
2025	7.895
2026	7.387
2027	7.396
2028	7.311
2029	6.849