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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 2 |
| 1949 | 1 |
| 1952 | 1 |
| 1955 | 1 |
| 1957 | 1 |
| 1963 | 2 |
| 1964 | 9 |
| 1965 | 19 |
| 1966 | 221 |
| 1967 | 428 |
| 1968 | 512 |
| 1969 | 572 |
| 1970 | 566 |
| 1971 | 637 |
| 1972 | 701 |
| 1973 | 612 |
| 1974 | 623 |
| 1975 | 532 |
| 1976 | 444 |
| 1977 | 398 |
| 1978 | 373 |
| 1979 | 443 |
| 1980 | 385 |
| 1981 | 415 |
| 1982 | 469 |
| 1983 | 452 |
| 1984 | 461 |
| 1985 | 411 |
| 1986 | 415 |
| 1987 | 360 |
| 1988 | 342 |
| 1989 | 400 |
| 1990 | 227 |
| 1992 | 1 |
| 1994 | 1 |
| 2002 | 1 |
| 2005 | 1 |
| 2012 | 1 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2024 | 0 |