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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1957 | 2 |
| 1959 | 2 |
| 1960 | 1 |
| 1962 | 3 |
| 1963 | 1 |
| 1964 | 1 |
| 1965 | 3 |
| 1966 | 3 |
| 1967 | 2 |
| 1968 | 3 |
| 1969 | 2 |
| 1970 | 3 |
| 1972 | 3 |
| 1973 | 2 |
| 1975 | 2 |
| 1976 | 2 |
| 1977 | 4 |
| 1978 | 2 |
| 1979 | 2 |
| 1980 | 3 |
| 1984 | 1 |
| 1985 | 1 |
| 1989 | 1 |
| 1993 | 1 |
| 1995 | 1 |
| 1999 | 1 |
| 2025 | 0 |