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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1957 | 1 |
| 1958 | 1 |
| 1964 | 1 |
| 1969 | 1 |
| 1970 | 1 |
| 1971 | 3 |
| 1972 | 1 |
| 1973 | 2 |
| 1974 | 2 |
| 1975 | 1 |
| 1976 | 1 |
| 1977 | 1 |
| 1979 | 1 |
| 1982 | 4 |
| 1983 | 2 |
| 1984 | 1 |
| 1986 | 3 |
| 1987 | 1 |
| 1988 | 1 |
| 1989 | 2 |
| 1991 | 2 |
| 1995 | 2 |
| 1998 | 1 |
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 1 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 1 |
| 2023 | 1 |
| 2024 | 1 |