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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 |
|---|---|
| 1989 | 1 |
| 1991 | 3 |
| 1992 | 1 |
| 1997 | 2 |
| 1999 | 3 |
| 2000 | 3 |
| 2001 | 7 |
| 2002 | 22 |
| 2003 | 32 |
| 2004 | 34 |
| 2005 | 55 |
| 2006 | 69 |
| 2007 | 83 |
| 2008 | 85 |
| 2009 | 96 |
| 2010 | 102 |
| 2011 | 140 |
| 2012 | 189 |
| 2013 | 227 |
| 2014 | 301 |
| 2015 | 392 |
| 2016 | 419 |
| 2017 | 504 |
| 2018 | 594 |
| 2019 | 769 |
| 2020 | 897 |
| 2021 | 1049 |
| 2022 | 1393 |
| 2023 | 1391 |
| 2024 | 604 |