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The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
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The https:// ensures that you are connecting to the
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and transmitted securely.
Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1980 | 1 |
| 1984 | 1 |
| 1985 | 1 |
| 1989 | 1 |
| 1992 | 1 |
| 1994 | 1 |
| 1997 | 1 |
| 1998 | 2 |
| 2001 | 3 |
| 2002 | 7 |
| 2003 | 7 |
| 2004 | 11 |
| 2005 | 13 |
| 2006 | 21 |
| 2007 | 31 |
| 2008 | 32 |
| 2009 | 44 |
| 2010 | 67 |
| 2011 | 57 |
| 2012 | 65 |
| 2013 | 82 |
| 2014 | 111 |
| 2015 | 147 |
| 2016 | 145 |
| 2017 | 176 |
| 2018 | 185 |
| 2019 | 261 |
| 2020 | 305 |
| 2021 | 330 |
| 2022 | 420 |
| 2023 | 383 |
| 2024 | 156 |