| Year | CH4 Production (CO2 Equivalent Gg) | N2O Production (CO2 Equivalent Gg) | Total (CO2 Equivalent Gg) |
| 2000 | 535.8 | 235.4 | 771.2 |
| 2001 | 521.3 | 229.5 | 750.8 |
| 2002 | 545 | 238.4 | 783.4 |
| 2003 | 555.3 | 242.4 | 796.7 |
| 2004 | 554 | 238.4 | 792.4 |
| 2005 | 569.5 | 250.3 | 819.8 |
| 2006 | 579 | 256.3 | 835.3 |
| 2007 | 611.8 | 259.3 | 871.1 |
| 2008 | 603.5 | 256.3 | 859.8 |
| 2009 | 589.3 | 247.4 | 836.6 |
| 2010 | 600.3 | 253.3 | 853.6 |