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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1950 | 1 |
| 1951 | 2 |
| 1952 | 2 |
| 1953 | 8 |
| 1954 | 11 |
| 1955 | 12 |
| 1956 | 18 |
| 1957 | 7 |
| 1958 | 19 |
| 1959 | 7 |
| 1964 | 1 |
| 1966 | 1 |
| 1967 | 2 |
| 1968 | 1 |
| 1969 | 2 |
| 1972 | 1 |
| 1973 | 1 |
| 1974 | 1 |
| 1976 | 1 |
| 1979 | 2 |
| 1980 | 1 |
| 1981 | 1 |
| 1982 | 2 |
| 1984 | 1 |
| 1987 | 2 |
| 1989 | 2 |
| 1990 | 3 |
| 1991 | 4 |
| 1994 | 1 |
| 1995 | 1 |
| 1996 | 1 |
| 1999 | 1 |
| 2003 | 1 |
| 2004 | 1 |
| 2013 | 1 |
| 2017 | 1 |
| 2021 | 1 |
| 2024 | 0 |