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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1939 | 1 |
| 1940 | 1 |
| 1941 | 1 |
| 1946 | 2 |
| 1947 | 2 |
| 1950 | 1 |
| 1951 | 1 |
| 1952 | 3 |
| 1953 | 4 |
| 1954 | 4 |
| 1955 | 3 |
| 1956 | 3 |
| 1957 | 3 |
| 1959 | 3 |
| 1960 | 2 |
| 1961 | 4 |
| 1962 | 4 |
| 1963 | 2 |
| 1964 | 3 |
| 1965 | 1 |
| 1966 | 2 |
| 1967 | 3 |
| 1969 | 5 |
| 1970 | 2 |
| 1972 | 3 |
| 1979 | 1 |
| 1980 | 1 |
| 1981 | 1 |
| 1988 | 1 |
| 1994 | 3 |
| 1996 | 1 |
| 1997 | 2 |
| 1998 | 2 |
| 2000 | 1 |
| 2012 | 1 |
| 2016 | 1 |
| 2017 | 3 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 1 |