Year	% of GDP
1989	4.28990983963013
1998	5.73984003067017
1999	4.02858018875122
2012	4.52899980545044
2013	4.35400009155273
2014	4.33400011062622
2015	3.40858006477356
2016	4.81400012969971
2017	5.21000003814697
2018	4.84499979019165
2019	5.53449010848999
2020	4.69630002975464
2021	5.19099998474121
2022	4.65700006484985