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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
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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 |
|---|---|
| 1980 | 13 |
| 1981 | 31 |
| 1982 | 24 |
| 1983 | 25 |
| 1984 | 32 |
| 1985 | 33 |
| 1986 | 20 |
| 1987 | 34 |
| 1988 | 27 |
| 1989 | 41 |
| 1990 | 36 |
| 1991 | 25 |
| 1992 | 33 |
| 1993 | 34 |
| 1994 | 38 |
| 1995 | 24 |
| 1996 | 10 |
| 1997 | 3 |
| 1998 | 2 |
| 1999 | 1 |
| 2001 | 1 |
| 2024 | 0 |