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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 |
|---|---|
| 1955 | 2 |
| 1956 | 6 |
| 1957 | 9 |
| 1958 | 13 |
| 1959 | 6 |
| 1960 | 8 |
| 1961 | 4 |
| 1963 | 2 |
| 1964 | 2 |
| 1975 | 1 |
| 1977 | 1 |
| 1978 | 1 |
| 1980 | 2 |
| 1981 | 1 |
| 1982 | 1 |
| 1983 | 2 |
| 1985 | 1 |
| 1986 | 1 |
| 1988 | 1 |
| 1992 | 1 |
| 2017 | 1 |
| 2020 | 1 |
| 2021 | 2 |
| 2022 | 2 |
| 2024 | 2 |