By Roger Weber
This, by year, is a list of the average and standard deviation
statistics for the overall field of Major League ballparks. For example, in 1904, the average age of MLB parks was 7.06 years,
and the standard deviation in ballpark ages was just under 7 years.
|
Year |
1901 |
1902 |
1903 |
1904 |
1905 |
1906 |
1907 |
1908 |
1909 |
1910 |
|
Average |
5.375 |
5.1875 |
6.0625 |
7.0625 |
8.0625 |
9.0625 |
10.063 |
11.063 |
10.438 |
10.313 |
|
St. dev. |
7.3473 |
6.8529 |
6.9519 |
6.9519 |
6.9519 |
6.9519 |
6.9519 |
6.9519 |
7.8398 |
8.7614 |
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|
Year |
1911 |
1912 |
1913 |
1914 |
1915 |
1916 |
1917 |
1918 |
1919 |
1920 |
|
Average |
9.4375 |
8.4375 |
7.875 |
8.875 |
7.4375 |
7.1875 |
8.1875 |
9.1875 |
10.188 |
9.5 |
|
St. dev. |
9.2157 |
10.119 |
10.468 |
10.468 |
7.2935 |
6.483 |
6.483 |
6.483 |
6.483 |
5.5377 |
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|
Year |
1921 |
1922 |
1923 |
1924 |
1925 |
1926 |
1927 |
1928 |
1929 |
1930 |
|
Average |
10.5 |
11.5 |
11.875 |
12.875 |
13.875 |
14.875 |
15.875 |
16.875 |
17.875 |
18.875 |
|
St. dev. |
5.5377 |
5.5377 |
6.3443 |
6.3443 |
6.3443 |
6.3443 |
6.3443 |
6.3443 |
6.3443 |
6.3443 |
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|
Year |
1931 |
1932 |
1933 |
1934 |
1935 |
1936 |
1937 |
1938 |
1939 |
1940 |
|
Average |
19.875 |
19.5 |
20.5 |
21.5 |
22.5 |
23.5 |
24.5 |
22.813 |
23.813 |
24.813 |
|
St. dev. |
6.3443 |
8.1976 |
8.1976 |
8.1976 |
8.1976 |
8.1976 |
8.1976 |
9.0791 |
9.0791 |
9.0791 |
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|
Year |
1941 |
1942 |
1943 |
1944 |
1945 |
1946 |
1947 |
1948 |
1949 |
1950 |
|
Average |
25.813 |
26.813 |
27.813 |
28.813 |
29.813 |
30.813 |
31.813 |
32.813 |
33.813 |
34.813 |
|
St. dev. |
9.0791 |
9.0791 |
9.0791 |
9.0791 |
9.0791 |
9.0791 |
9.0791 |
9.0791 |
9.0791 |
9.0791 |
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|
Year |
1951 |
1952 |
1953 |
1954 |
1955 |
1956 |
1957 |
1958 |
1959 |
1960 |
|
Average |
35.813 |
36.813 |
35.438 |
33.188 |
33.313 |
34.313 |
35.313 |
34.438 |
35.438 |
34.625 |
|
St. dev. |
9.0791 |
9.0791 |
13.105 |
15.259 |
14.934 |
14.934 |
14.934 |
14.578 |
14.578 |
17.142 |
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|
Year |
1961 |
1962 |
1963 |
1964 |
1965 |
1966 |
1967 |
1968 |
1969 |
1970 |
|
Average |
31.667 |
27.4 |
28.4 |
26.75 |
27.6 |
25.45 |
26.45 |
25.2 |
23.833 |
20.583 |
|
St. dev. |
19.799 |
22.165 |
22.165 |
22.363 |
22.547 |
23.801 |
23.801 |
24.178 |
24.068 |
22.027 |
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|
Year |
1971 |
1972 |
1973 |
1974 |
1975 |
1976 |
1977 |
1978 |
1979 |
1980 |
|
Average |
20.208 |
20.792 |
19.708 |
19 |
20 |
20.5 |
19.577 |
20.577 |
21.577 |
22.577 |
|
St. dev. |
22.312 |
22.622 |
22.209 |
21.338 |
21.338 |
21.696 |
21.81 |
21.81 |
21.81 |
21.81 |
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|
Year |
1981 |
1982 |
1983 |
1984 |
1985 |
1986 |
1987 |
1988 |
1989 |
1990 |
|
Average |
23.577 |
23.769 |
24.769 |
25.769 |
26.769 |
27.769 |
28.769 |
29.769 |
30.308 |
31.308 |
|
St. dev. |
21.81 |
22.331 |
22.331 |
22.331 |
22.331 |
22.331 |
22.331 |
22.331 |
22.852 |
22.852 |
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|
Year |
1991 |
1992 |
1993 |
1994 |
1995 |
1996 |
1997 |
1998 |
1999 |
2000 |
|
Average |
29.192 |
28.731 |
29.429 |
27.429 |
26.75 |
27.75 |
26.536 |
25.7 |
25.933 |
21.5 |
|
St. dev. |
21.425 |
22.155 |
21.997 |
22.441 |
22.756 |
22.756 |
23.95 |
24.142 |
24.624 |
22.674 |
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|
Year |
2001 |
2002 |
2003 |
2004 |
2005 |
2006 |
2007 |
2008 |
2009 |
2010 |
|
Average |
19.833 |
20.833 |
20.733 |
19.4 |
20.9 |
20.567 |
21.567 |
22.567 |
20.967 |
21.033 |
|
St. dev. |
22.719 |
22.719 |
22.957 |
23.271 |
23.599 |
23.671 |
23.671 |
23.671 |
23.932 |
24.232 |
