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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 |
|---|---|
| 1991 | 2 |
| 1993 | 1 |
| 1995 | 1 |
| 1996 | 1 |
| 1997 | 3 |
| 1998 | 1 |
| 1999 | 3 |
| 2000 | 4 |
| 2001 | 9 |
| 2002 | 4 |
| 2003 | 2 |
| 2004 | 6 |
| 2005 | 5 |
| 2006 | 5 |
| 2007 | 4 |
| 2008 | 3 |
| 2009 | 15 |
| 2010 | 15 |
| 2011 | 28 |
| 2012 | 27 |
| 2013 | 32 |
| 2014 | 38 |
| 2015 | 48 |
| 2016 | 55 |
| 2017 | 52 |
| 2018 | 59 |
| 2019 | 71 |
| 2020 | 73 |
| 2021 | 70 |
| 2022 | 49 |
| 2023 | 43 |
| 2024 | 41 |
| 2025 | 21 |