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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1949 | 1 |
| 1951 | 1 |
| 1952 | 3 |
| 1957 | 2 |
| 1960 | 1 |
| 1967 | 3 |
| 1968 | 3 |
| 1970 | 2 |
| 1971 | 1 |
| 1972 | 3 |
| 1973 | 2 |
| 1974 | 3 |
| 1976 | 2 |
| 1978 | 3 |
| 1979 | 1 |
| 1980 | 4 |
| 1981 | 3 |
| 1982 | 1 |
| 1983 | 1 |
| 1985 | 1 |
| 1990 | 1 |
| 1991 | 1 |
| 1996 | 2 |
| 1998 | 1 |
| 1999 | 2 |
| 2001 | 1 |
| 2004 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 1 |
| 2022 | 2 |
| 2024 | 0 |