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Federal government websites often end in .gov or .mil. Before
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and transmitted securely.
Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 1 |
| 1968 | 1 |
| 1981 | 1 |
| 1984 | 1 |
| 1987 | 2 |
| 1988 | 2 |
| 1990 | 1 |
| 1992 | 1 |
| 1995 | 1 |
| 1996 | 2 |
| 1997 | 2 |
| 1998 | 6 |
| 1999 | 3 |
| 2000 | 8 |
| 2001 | 3 |
| 2002 | 17 |
| 2003 | 16 |
| 2004 | 15 |
| 2005 | 27 |
| 2006 | 45 |
| 2007 | 38 |
| 2008 | 31 |
| 2009 | 37 |
| 2010 | 50 |
| 2011 | 46 |
| 2012 | 62 |
| 2013 | 79 |
| 2014 | 81 |
| 2015 | 99 |
| 2016 | 83 |
| 2017 | 103 |
| 2018 | 116 |
| 2019 | 93 |
| 2020 | 106 |
| 2021 | 124 |
| 2022 | 80 |
| 2023 | 85 |
| 2024 | 20 |