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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 |
|---|---|
| 1979 | 11 |
| 1983 | 13 |
| 1999 | 18 |
| 2001 | 88 |
| 2002 | 77 |
| 2003 | 100 |
| 2004 | 107 |
| 2005 | 108 |
| 2006 | 109 |
| 2007 | 100 |
| 2008 | 142 |
| 2009 | 156 |
| 2010 | 140 |
| 2011 | 168 |
| 2012 | 189 |
| 2013 | 207 |
| 2014 | 236 |
| 2015 | 182 |
| 2016 | 148 |
| 2017 | 163 |
| 2018 | 152 |
| 2019 | 163 |
| 2020 | 148 |
| 2021 | 129 |
| 2022 | 139 |
| 2023 | 130 |
| 2024 | 100 |
| 2025 | 88 |
| 2026 | 35 |