16-20  National Railway Freight Traffic by Category of Cargo
Item	2003			2004
	Freight	Freight	Average	Freight	Freight	Average
	Traffic	Ton-kilometers	Transport	Traffic	Ton-kilometers	Transport
	(10 000	(million	Distance	(10 000	(million	Distance
	tons)	ton-kilometers)	(km)	tons)	ton-kilometers)	(km)
Total	199076	1632341	820	216961	1810994	835
Coal	88132	505540	574	99210	571298	576
Coke	7124	63789	895	7189	66151	920
Petroleum	10765	102934	956	11944	109964	921
Steel and Iron	15280	165545	1083	16083	178964	1113
Metal Ores	18082	103868	574	19319	119602	619
Nonmetal Ores	7945	50799	639	8039	53570	666
Mineral Building	7664	36500	476	7785	40976	526
Materials
Cement	3652	15347	420	3700	15283	413
Timber	3054	53866	1764	3237	57387	1773
Chemical Fertilizers	5660	72312	1278	6392	83276	1303
and Pesticides
Grain	10138	136651	1348	10906	163493	1499
Cotton	218	7334	3366	264	8987	3404
Salt	1263	10031	794	1278	9843	770
Others	20099	307825	1532	21615	332200	1537