Year	Percent change (Units)
2013	-0.521
2014	0.140
2015	-5.253
2016	-10.114
2017	3.098
2018	-2.460
2019	-5.634
2020	-3.751
2021	22.170
2022	7.235
2023	5.248
2024	8.267
2025	6.191
2026	5.560
2027	5.068
2028	4.739
2029	5.455