Year	Percent change (Units)
2015	-37.770
2016	-25.021
2017	19.637
2018	26.071
2019	21.053
2020	-37.941
2021	0.757
2022	7.840
2023	1.907
2024	1.986
2025	1.627
2026	1.394
2027	1.407
2028	1.376
2029	1.339