Historical Statistics of the United States Millennial Edition Online

			Cb5	Cb6	Cb7	Cb8
			Contraction (peak to trough)	Expansion (trough to peak)	Full cycle
			Trough to trough	Peak to peak
Row	Trough	Peak	Months	Months	Months	Months
1	Dec 1854	Jun 1857	----	30	----	----
2	Dec 1858	Oct 1860	18	22	48	40
3	Jun 1861	Apr 1865	8	46	30	54
4	Dec 1867	Jun 1869	32	18	78	50
5	Dec 1870	Oct 1873	18	34	36	52

6	Mar 1879	Mar 1882	65	36	99	101
7	May 1885	Mar 1887	38	22	74	60
8	Apr 1888	Jul 1890	13	27	35	40
9	May 1891	Jan 1893	10	20	37	30
10	Jun 1894	Dec 1895	17	18	37	35

11	Jun 1897	Jun 1899	18	24	36	42
12	Dec 1900	Sep 1902	18	21	42	39
13	Oct 1904	May 1907	23	33	44	56
14	Jun 1908	Jan 1910	13	19	46	32
15	Jan 1912	Jan 1913	24	12	43	36

16	Dec 1914	Aug 1918	23	44	35	67
17	Mar 1919	Jan 1920	7	10	51	17
18	Jul 1921	May 1923	18	22	28	40
19	Jul 1924	Oct 1926	14	27	36	41
20	Nov 1927	Aug 1929	13	21	40	34

21	Mar 1933	May 1937	43	50	64	93
22	Jun 1938	Feb 1945	13	80	63	93
23	Oct 1945	Nov 1948	8	37	88	45
24	Oct 1949	Jul 1953	11	45	48	56
25	May 1954	Aug 1957	10	39	55	49

26	Apr 1958	Apr 1960	8	24	47	32
27	Feb 1961	Dec 1969	10	106	34	116
28	Nov 1970	Nov 1973	11	36	117	47
29	Mar 1975	Jan 1980	16	58	52	74
30	Jul 1980	Jul 1981	6	12	64	18

31	Nov 1982	Jul 1990	16	92	28	108
32	Mar 1991	Mar 2001	8	120	100	128