Year	Percent change (Units)
2015	-0.611
2016	-1.652
2017	-3.190
2018	12.704
2019	-3.812
2020	-35.233
2021	-4.134
2022	28.254
2023	15.161
2024	0.959
2025	2.301
2026	2.639
2027	1.950
2028	1.496
2029	1.595