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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 |
|---|---|
| 1976 | 1 |
| 1988 | 41 |
| 1997 | 8 |
| 2003 | 129 |
| 2004 | 127 |
| 2005 | 133 |
| 2006 | 130 |
| 2007 | 132 |
| 2008 | 138 |
| 2009 | 152 |
| 2010 | 134 |
| 2011 | 166 |
| 2012 | 146 |
| 2013 | 162 |
| 2014 | 149 |
| 2015 | 136 |
| 2016 | 131 |
| 2017 | 162 |
| 2018 | 198 |
| 2019 | 187 |
| 2020 | 210 |
| 2021 | 241 |
| 2022 | 237 |
| 2023 | 261 |
| 2024 | 128 |