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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1954 | 1 |
| 1958 | 1 |
| 1959 | 2 |
| 1967 | 2 |
| 1968 | 2 |
| 1969 | 1 |
| 1970 | 1 |
| 1972 | 1 |
| 1973 | 1 |
| 1976 | 4 |
| 1977 | 2 |
| 1978 | 2 |
| 1979 | 2 |
| 1980 | 1 |
| 1981 | 4 |
| 1982 | 4 |
| 1984 | 2 |
| 1985 | 2 |
| 1986 | 4 |
| 1989 | 1 |
| 1994 | 1 |
| 2000 | 1 |
| 2003 | 3 |
| 2004 | 1 |
| 2007 | 3 |
| 2012 | 2 |
| 2014 | 2 |
| 2015 | 4 |
| 2016 | 5 |
| 2017 | 4 |
| 2019 | 4 |
| 2020 | 2 |
| 2021 | 1 |
| 2024 | 1 |
| 2025 | 0 |