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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1955 | 1 |
| 1956 | 1 |
| 1957 | 2 |
| 1959 | 1 |
| 1960 | 2 |
| 1961 | 1 |
| 1962 | 1 |
| 1963 | 1 |
| 1965 | 1 |
| 1967 | 2 |
| 1968 | 1 |
| 1972 | 1 |
| 1974 | 1 |
| 1975 | 2 |
| 1977 | 3 |
| 1979 | 1 |
| 1982 | 1 |
| 1988 | 2 |
| 1990 | 1 |
| 1992 | 1 |
| 1994 | 3 |
| 1996 | 2 |
| 1999 | 1 |
| 2001 | 1 |
| 2002 | 1 |
| 2007 | 1 |
| 2010 | 2 |
| 2011 | 1 |
| 2013 | 2 |
| 2014 | 1 |
| 2018 | 1 |
| 2022 | 1 |
| 2024 | 1 |