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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1956 | 2 |
| 1958 | 2 |
| 1959 | 5 |
| 1960 | 1 |
| 1962 | 2 |
| 1964 | 1 |
| 1967 | 2 |
| 1968 | 6 |
| 1969 | 4 |
| 1970 | 6 |
| 1971 | 2 |
| 1973 | 1 |
| 1974 | 8 |
| 1975 | 1 |
| 1977 | 1 |
| 1982 | 1 |
| 1983 | 1 |
| 1985 | 1 |
| 1986 | 1 |
| 1987 | 2 |
| 1988 | 1 |
| 1989 | 2 |
| 1990 | 2 |
| 1992 | 3 |
| 1994 | 4 |
| 2003 | 1 |
| 2016 | 1 |
| 2018 | 1 |
| 2019 | 2 |
| 2024 | 0 |