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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 |
|---|---|
| 1972 | 2 |
| 1989 | 1 |
| 1990 | 1 |
| 1994 | 2 |
| 1996 | 2 |
| 1997 | 1 |
| 1999 | 2 |
| 2000 | 3 |
| 2001 | 3 |
| 2002 | 11 |
| 2003 | 11 |
| 2004 | 24 |
| 2005 | 43 |
| 2006 | 92 |
| 2007 | 188 |
| 2008 | 474 |
| 2009 | 776 |
| 2010 | 1114 |
| 2011 | 1589 |
| 2012 | 2411 |
| 2013 | 3136 |
| 2014 | 3382 |
| 2015 | 3570 |
| 2016 | 3901 |
| 2017 | 3849 |
| 2018 | 4494 |
| 2019 | 5637 |
| 2020 | 6029 |
| 2021 | 4650 |
| 2022 | 4059 |
| 2023 | 2893 |
| 2024 | 55 |