7.2.2. Carbon monoxide emissions (CO) by mode of transport (tonnes)
	1995	1999	2000	2001	2002	2003
Total	348 400	322 500	286 500	272 500	255 500	240 300
Individual  road passenger transport	270 500	221 300	180 400	156 900	149 000	139 000
Public road passenger transport	7 500	10 000	11 600	13 200	9 700	11 000
Road freight transport	52 700	73 700	77 200	83 400	81 000	73 800
MHD - buses	5 200	7 600	8 500	9 500	8 200	7 900
Railway transport  - motor traction	8 800	7 200	6 200	7 000	5 200	5 100
Waterway transport	1 100	900	800	700	500	500
Air transport	2 600	1 800	1 800	1 800	1 900	2 100
						Source: CDV