Year Current Prices 2010-01-01 1364800000 2011-01-01 2216800000 2012-01-01 1881000000 2013-01-01 1847300000 2014-01-01 1425300000 2015-01-01 2298400000 2016-01-01 2366900000 2017-01-01 2400000000 2018-01-01 2300000000 2019-01-01 2300000000 2020-01-01 2200000000 2021-01-01 2200000000 2022-01-01 2200000000 2023-01-01 2200000000