Year	Percent change (Units)
2015	29.515
2016	9.901
2017	-4.577
2018	-5.973
2019	-0.196
2020	-5.707
2021	-5.646
2022	6.678
2023	24.189
2024	10.245
2025	3.821
2026	2.769
2027	0.493
2028	2.434
2029	2.397