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Federal government websites often end in .gov or .mil. Before
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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1856 | 1 |
| 1857 | 1 |
| 1881 | 1 |
| 1882 | 1 |
| 1883 | 1 |
| 1886 | 1 |
| 1966 | 1 |
| 1971 | 1 |
| 1973 | 1 |
| 1974 | 1 |
| 1984 | 1 |
| 1985 | 1 |
| 1986 | 2 |
| 1987 | 1 |
| 1989 | 3 |
| 1990 | 2 |
| 1991 | 1 |
| 1992 | 1 |
| 1996 | 1 |
| 1999 | 1 |
| 2003 | 2 |
| 2004 | 3 |
| 2011 | 1 |
| 2012 | 1 |
| 2014 | 1 |
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 1 |
| 2019 | 2 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 1 |
| 2024 | 0 |