| SO2, tonnes |
Public electricity and heat prod. | Petroleum refining | Other energy industries | Industry | Commercial / Institutional | Residential | Agriculture / Forestry / Fisheries | Total |
| 1990 | 126 052 | 3 411 | 3 | 16 296 | 1 874 | 6 415 | 3 192 | 157 242 |
| 1991 | 183 847 | 2 644 | 3 | 18 036 | 1 656 | 7 089 | 3 352 | 216 627 |
| 1992 | 136 250 | 3 313 | 3 | 16 766 | 1 416 | 5 995 | 3 030 | 166 775 |
| 1993 | 104 510 | 3 873 | 3 | 15 433 | 1 364 | 6 613 | 2 939 | 134 736 |
| 1994 | 107 171 | 2 676 | 4 | 13 729 | 1 367 | 5 778 | 3 060 | 133 784 |
| 1995 | 104 327 | 2 048 | 4 | 11 520 | 779 | 2 324 | 2 906 | 123 907 |
| 1996 | 142 388 | 1 139 | 5 | 11 902 | 752 | 2 308 | 2 947 | 161 440 |
| 1997 | 73 845 | 1 209 | 6 | 10 665 | 637 | 2 115 | 2 210 | 90 688 |
| 1998 | 53 883 | 940 | 7 | 10 138 | 414 | 1 951 | 1 942 | 69 274 |
| 1999 | 36 331 | 541 | 7 | 8 375 | 482 | 1 819 | 1 669 | 49 225 |
| 2000 | 12 020 | 598 | 8 | 7 421 | 356 | 1 522 | 1 619 | 23 543 |
| 2001 | 10 351 | 606 | 7 | 7 739 | 247 | 1 593 | 1 655 | 22 197 |
| 2002 | 10 035 | 923 | 8 | 6 434 | 603 | 1 582 | 1 259 | 20 843 |
| 2003 | 17 019 | 488 | 8 | 6 650 | 372 | 1 569 | 1 293 | 27 399 |
| 2004 | 9 787 | 422 | 8 | 7 213 | 270 | 1 557 | 1 352 | 20 609 |
| 2005 | 7 783 | 267 | 8 | 6 230 | 283 | 1 653 | 1 551 | 17 777 |
| 2006 | 9 883 | 231 | 9 | 7 296 | 221 | 1 685 | 1 708 | 21 033 |
| 2007 | 8 687 | 406 | 9 | 6 282 | 220 | 1 689 | 1 636 | 18 929 |
| 2008 | 6 375 | 380 | 8 | 4 534 | 191 | 1 633 | 1 527 | 14 648 |
| 2009 | 4 589 | 341 | 8 | 2 847 | 130 | 1 636 | 1 219 | 10 771 |