Year	Percent change (Units)
2012	-50.319
2013	27.272
2014	1.556
2015	-0.231
2016	-13.299
2017	-5.794
2018	-2.149
2019	0.856
2020	-6.494
2021	5.329
2022	-5.186
2023	-0.070
2024	5.603
2025	6.796
2026	5.238
2027	5.336
2028	5.631
2029	5.766