Year	Mt of CO2 equivalent
1990	-61.79507660863678
1991	-76.25632104629831
1992	-75.48484152164059
1993	-58.648899907357276
1994	-75.42459815688636
1995	-79.92378603973371
1996	-88.16469046533221
1997	-75.07530051294744
1998	-73.07172169965985
1999	-79.42279344922275
2000	-78.8912145918329
2001	-86.90982074637381
2002	-92.83190686538128
2003	-83.61875612593421
2004	-87.97125325351402
2005	-90.54239547311049
2006	-96.96450288233889
2007	-73.31029087501527
2008	-92.82781844781086
2009	-94.6709724714804