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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 |
|---|---|
| 1987 | 1 |
| 1988 | 1 |
| 1993 | 1 |
| 1995 | 1 |
| 1996 | 1 |
| 1998 | 1 |
| 2000 | 1 |
| 2001 | 1 |
| 2003 | 1 |
| 2004 | 1 |
| 2005 | 7 |
| 2006 | 31 |
| 2007 | 93 |
| 2008 | 382 |
| 2009 | 838 |
| 2010 | 1644 |
| 2011 | 1570 |
| 2012 | 1708 |
| 2013 | 1790 |
| 2014 | 1474 |
| 2015 | 497 |
| 2016 | 159 |
| 2017 | 19 |
| 2018 | 133 |
| 2019 | 670 |
| 2020 | 1037 |
| 2021 | 778 |
| 2022 | 587 |
| 2023 | 753 |
| 2024 | 749 |