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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 |
|---|---|
| 1988 | 1 |
| 1989 | 2 |
| 1990 | 7 |
| 1991 | 4 |
| 1992 | 10 |
| 1993 | 11 |
| 1994 | 8 |
| 1995 | 16 |
| 1996 | 11 |
| 1997 | 15 |
| 1998 | 12 |
| 1999 | 16 |
| 2000 | 17 |
| 2001 | 18 |
| 2002 | 14 |
| 2003 | 26 |
| 2004 | 29 |
| 2005 | 34 |
| 2006 | 42 |
| 2007 | 44 |
| 2008 | 43 |
| 2009 | 54 |
| 2010 | 52 |
| 2011 | 60 |
| 2012 | 89 |
| 2013 | 104 |
| 2014 | 92 |
| 2015 | 95 |
| 2016 | 92 |
| 2017 | 77 |
| 2018 | 81 |
| 2019 | 95 |
| 2020 | 86 |
| 2021 | 103 |
| 2022 | 66 |
| 2023 | 71 |
| 2024 | 35 |