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The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
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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 |
|---|---|
| 1989 | 1 |
| 1992 | 4 |
| 1997 | 1 |
| 1998 | 1 |
| 2000 | 1 |
| 2001 | 12 |
| 2002 | 56 |
| 2003 | 119 |
| 2004 | 166 |
| 2005 | 205 |
| 2006 | 258 |
| 2007 | 326 |
| 2008 | 417 |
| 2009 | 456 |
| 2010 | 573 |
| 2011 | 613 |
| 2012 | 734 |
| 2013 | 907 |
| 2014 | 1444 |
| 2015 | 1702 |
| 2016 | 1936 |
| 2017 | 2116 |
| 2018 | 2213 |
| 2019 | 2317 |
| 2020 | 2730 |
| 2021 | 2884 |
| 2022 | 2556 |
| 2023 | 2466 |
| 2024 | 993 |