Year kt of CO2 equivalent 1990 527661.029323 1991 516864.244185 1992 503372.011436 1993 492446.47943900013 1994 483800.9032530001 1995 479244.035227 1996 478861.53435299994 1997 473992.5619779999 1998 465890.247882 1999 460078.09716800007 2000 456868.75315700006 2001 449733.94573700003 2002 444037.45403300005 2003 440320.68850200006 2004 432607.41843299987 2005 426685.709682 2006 421850.55974199995 2007 418406.63532999996 2008 414138.265425 2009 408218.63097999996 2010 405327.81853300007 2011 393976.125091 2012 390806.175514 2013 385377.11945199996 2014 379674.1609980001 2015 380172.516234 2016 376336.363267 2017 374662.5364979999 2018 369068.36975 2019 365536.68550099997 2020 361793.59374100005