Year % of central government expense 2012 52.662118604841545 2013 49.271690459966706 2014 38.38798293914 2015 39.756780000535294 2016 42.0326247500823 2017 63.04441398268943 2018 56.187029398817366 2019 50.31567638998013 2020 64.40514416378804 2021 28.51574818897084