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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 |
|---|---|
| 1951 | 1 |
| 1971 | 1 |
| 1973 | 1 |
| 1984 | 1 |
| 1985 | 1 |
| 1990 | 1 |
| 1991 | 1 |
| 1994 | 1 |
| 1996 | 2 |
| 1998 | 1 |
| 2005 | 2 |
| 2006 | 1 |
| 2007 | 2 |
| 2008 | 3 |
| 2009 | 1 |
| 2010 | 1 |
| 2011 | 4 |
| 2012 | 5 |
| 2013 | 6 |
| 2014 | 2 |
| 2016 | 1 |
| 2017 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2024 | 0 |