Historical Statistics of the United States Millennial Edition Online

		Df1070²	Df1071	Df1072	Df1073
		Road and equipment, net investment, book value	Capital expenditures for additions and betterments
		Total	Equipment	Roadway and structures
Row	Year	Thousand dollars	Thousand dollars	Thousand dollars	Thousand dollars
1	1960	27,474,089	919,154	633,490	285,664
2	1961	27,180,557	646,425	427,130	219,295
3	1962	25,858,289	832,938	593,369	239,569
4	1963	25,772,832	1,043,788	784,874	258,914
5	1964	25,989,260	1,417,263	1,139,683	277,580

6	1965	26,318,532	1,630,687	1,303,603	327,084
7	1966	27,322,220	1,952,805	1,554,223	398,581
8	1967	27,732,601	1,522,478	1,148,381	374,097
9	1968	27,667,726	1,186,979	818,720	368,259
10	1969	27,891,688	1,509,394	1,088,712	420,681

11	1970	28,186,077	1,351,439	993,095	358,344
12	1971	28,096,047	1,177,627	863,517	314,110
13	1972	27,735,595	1,215,581	847,623	367,958
14	1973	27,979,177	1,342,138	892,690	449,448
15	1974	28,854,835	1,565,412	1,038,142	527,270

16	1975	29,739,673	1,789,725	1,303,308	486,417
17	1976	26,925,751	1,724,708	1,174,783	549,925
18	1977	28,222,310	2,290,439	1,539,549	750,890
19	1978	28,946,319	2,738,238	1,882,961	855,277
20	1979	30,438,804	3,324,174	2,284,855	1,039,319

21	1980	33,419,097	3,233,596	2,280,129	953,467
22	1981	34,997,185	2,749,757	1,501,707	1,248,050
23	1982	35,260,692	2,165,941	847,572	1,318,369
24	1983	43,483,411	2,760,909	455,279	2,305,630
25	1984	45,435,400	3,744,395	806,159	2,938,236

26	1985	46,236,917	4,422,903	964,888	3,458,015
27	1986	45,343,671	3,600,682	692,663	2,908,019
28	1987	45,689,605	2,970,805	656,853	2,313,952
29	1988	47,053,269	3,681,447	1,027,251	2,654,196
30	1989	47,370,438	3,708,662	1,170,728	2,537,934

31	1990	48,126,335	3,639,838	995,872	2,643,966
32	1991	48,565,225	3,437,363	1,067,958	2,369,405
33	1992	49,298,754	3,610,332	874,330	2,736,002
34	1993	51,324,734	4,177,069	1,381,699	2,795,370
35	1994	54,184,206	4,885,465	1,733,864	3,151,601

36	1995	62,746,424	5,994,368	2,342,904	3,651,464
37	1996	66,113,117	6,100,996	2,201,673	3,899,323