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Federal government websites often end in .gov or .mil. Before
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The https:// ensures that you are connecting to the
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and transmitted securely.
Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1949 | 1 |
| 1950 | 2 |
| 1951 | 1 |
| 1953 | 2 |
| 1957 | 2 |
| 1958 | 2 |
| 1959 | 1 |
| 1963 | 1 |
| 1964 | 1 |
| 1965 | 4 |
| 1966 | 6 |
| 1967 | 7 |
| 1968 | 3 |
| 1991 | 2 |
| 1992 | 1 |
| 1995 | 4 |
| 1996 | 1 |
| 1998 | 1 |
| 2001 | 3 |
| 2002 | 1 |
| 2006 | 1 |
| 2007 | 2 |
| 2008 | 2 |
| 2009 | 3 |
| 2010 | 4 |
| 2011 | 3 |
| 2012 | 2 |
| 2014 | 3 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 0 |