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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1949 | 2 |
| 1951 | 1 |
| 1952 | 1 |
| 1953 | 2 |
| 1959 | 2 |
| 1962 | 2 |
| 1977 | 1 |
| 1978 | 1 |
| 1979 | 1 |
| 1980 | 1 |
| 1981 | 2 |
| 1982 | 1 |
| 1983 | 1 |
| 1984 | 3 |
| 1986 | 2 |
| 1987 | 1 |
| 1988 | 2 |
| 1989 | 4 |
| 1991 | 1 |
| 1992 | 2 |
| 1993 | 2 |
| 1994 | 1 |
| 1995 | 2 |
| 1998 | 1 |
| 2000 | 1 |
| 2002 | 1 |
| 2011 | 1 |
| 2013 | 1 |
| 2014 | 2 |
| 2021 | 1 |
| 2023 | 1 |
| 2024 | 2 |