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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 |
|---|---|
| 1963 | 1 |
| 1968 | 2 |
| 1970 | 2 |
| 1971 | 1 |
| 1973 | 1 |
| 1977 | 1 |
| 1982 | 2 |
| 1983 | 1 |
| 1988 | 1 |
| 1991 | 1 |
| 1993 | 2 |
| 1994 | 1 |
| 1995 | 1 |
| 2001 | 1 |
| 2003 | 1 |
| 2004 | 4 |
| 2005 | 6 |
| 2006 | 8 |
| 2007 | 10 |
| 2008 | 20 |
| 2009 | 20 |
| 2010 | 29 |
| 2011 | 26 |
| 2012 | 31 |
| 2013 | 29 |
| 2014 | 35 |
| 2015 | 37 |
| 2016 | 31 |
| 2017 | 33 |
| 2018 | 35 |
| 2019 | 40 |
| 2020 | 47 |
| 2021 | 73 |
| 2022 | 69 |
| 2023 | 76 |
| 2024 | 74 |
| 2025 | 66 |