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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 |
|---|---|
| 1974 | 234 |
| 1975 | 39 |
| 2000 | 265 |
| 2001 | 332 |
| 2002 | 352 |
| 2003 | 400 |
| 2004 | 352 |
| 2005 | 403 |
| 2006 | 393 |
| 2007 | 411 |
| 2008 | 427 |
| 2009 | 427 |
| 2010 | 263 |
| 2011 | 383 |
| 2012 | 424 |
| 2013 | 396 |
| 2014 | 405 |
| 2015 | 410 |
| 2016 | 411 |
| 2017 | 378 |
| 2018 | 362 |
| 2019 | 359 |
| 2020 | 355 |
| 2021 | 325 |
| 2022 | 315 |
| 2023 | 319 |
| 2024 | 309 |
| 2025 | 98 |