Year	Current Prices
2010-01-01	5754900000
2011-01-01	11807800000
2012-01-01	9237400000
2013-01-01	6629800000
2014-01-01	6037200000
2015-01-01	5779900000
2016-01-01	4988600000
2017-01-01	5356500000
2018-01-01	5600000000
2019-01-01	5800000000
2020-01-01	5600000000
2021-01-01	5500000000
2022-01-01	5500000000
2023-01-01	5500000000