Historical Statistics of the United States Millennial Edition Online

		Df104		Df105	Df106	Df107		Df108
		Air carrier, domestic, scheduled service		Class I rail	Truck	Oil pipeline		Barge
Row	Year	Cents per ton-mile		Cents per ton-mile	Cents per ton-mile	Cents per ton-mile		Cents per ton-mile
1	1960	22.80		1.40	6.31	0.32		----
2	1961	22.08		1.37	6.30	0.32		----
3	1962	21.31		1.35	6.41	0.32		----
4	1963	21.72		1.31	6.38	0.32		----
5	1964	20.97		1.28	6.66	0.30		0.36

6	1965	20.46		1.27	6.46	0.28		0.35
7	1966	20.21		1.26	6.34	0.27		0.33
8	1967	19.90		1.27	6.65	0.26		0.29
9	1968	19.97		1.31	6.93	0.26		0.31
10	1969	21.03		1.35	7.08	0.27		0.29

11	1970	21.91		1.43	8.50	0.27		0.30
12	1971	22.58		1.59	9.30	0.29		0.34
13	1972	22.75		1.62	9.50	0.29		0.33
14	1973	23.31		1.62	9.80	0.29		0.38
15	1974	25.92		1.85	10.40	0.32		0.49

16	1975	28.22		2.04	11.60	0.37		0.52
17	1976	31.81		2.19	12.00	0.41		0.51
18	1977	34.22		2.29	12.70	0.62		0.56
19	1978	37.10		2.36	13.40	1.01	²	0.62
20	1979	41.02		2.61	15.20	1.12		0.67

21	1980	46.31		2.87	18.00	1.33		0.77
22	1981	50.15		3.18	20.00	1.45		0.85
23	1982	49.69		3.21	20.77	1.45		0.84
24	1983	49.30		3.12	21.23	1.62		0.82
25	1984	50.20		3.09	21.54	1.62		0.82

26	1985	48.77		3.04	22.90	1.57		0.80
27	1986	105.43	¹	2.92	21.63	1.50		0.76
28	1987	109.79		2.73	22.48	1.45		0.73
29	1988	113.66		2.72	23.17	1.36		0.75
30	1989	96.84		2.67	23.91	1.33		0.77

31	1990	64.60		2.66	24.40	1.44		0.76
32	1991	64.80		2.59	24.80	1.40		0.78
33	1992	65.70		2.58	23.10	1.49		0.76
34	1993	71.40		2.52	25.00	1.42		0.76
35	1994	72.20		2.49	25.00	1.40		0.74

36	1995	76.50		2.40	25.10	1.51		0.73
37	1996	81.50		2.35	26.00	1.37		0.73
38	1997	79.70		2.40	26.10	1.37		0.73
39	1998	84.10		2.34	----	----		----