Year	Percent change (Units)
2015	32.467
2016	-18.097
2017	1.274
2018	-26.732
2019	31.754
2020	-32.881
2021	23.299
2022	38.848
2023	15.844
2024	4.594
2025	3.959
2026	3.617
2027	3.333
2028	3.146
2029	3.140