"CO Emission Trends (tons/day, annual average)"								
Emission Source	1975	1980	1985	1990	1995	2000	2005	2010
All Sources	19322	16155	16421	13263	9905	7197	5011	3926
Stationary Sources	299	292	80	104	68	55	57	60
Area-wide Sources	166	178	217	215	243	308	336	352
On-Road Mobile	17888	14647	15002	11698	8460	5826	3661	2580
   Gasoline Vehicles	17861	14597	14913	11591	8377	5767	3608	2533
   Diesel Vehicles	27	51	89	107	83	58	53	48
Other Mobile	969	1037	1123	1246	1134	1009	957	934