How often have recessions occurred since the end of World War II (1945)?
Trough Peak Months of Contraction Months of Expansion
December 1900 September 1902 18 21
August 1904 May 1907 23 33
June 1908 January 1910 13 19
January 1912 January 1913 24 12
December 1914 August 1918 23 44
March 1919 January 1920 7 10
July 1921 May 1923 18 22
July 1924 October 1926 14 27
November 1927 August 1929 13 21
March 1933 May 1937 43 50
June 1938 February 1945 13 80
October 1945 November 1948 8 37
October 1949 July 1953 11 45
May 1954 August 1957 10 39
April 1958 April 1960 8 24
February 1961 December 1969 10 106
November 1970 November 1973 11 36
March 1975 January 1980 16 58
July 1980 July 1981 6 12
November 1982 July 1990 16 92
March 1991 March 2001 8 120
November 2001 December 2007 8 73
June 2009 February 2020 18 128
