Year	Percent change (Units)
2015	4.843
2016	20.681
2017	-4.249
2018	-4.269
2019	-7.760
2020	-2.309
2021	0.734
2022	9.157
2023	26.470
2024	4.274
2025	4.667
2026	4.205
2027	3.706
2028	3.387
2029	3.304