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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1956 | 1 |
| 1957 | 1 |
| 1958 | 2 |
| 1959 | 1 |
| 1960 | 2 |
| 1961 | 1 |
| 1962 | 1 |
| 1964 | 1 |
| 1965 | 1 |
| 1967 | 1 |
| 1984 | 1 |
| 1988 | 2 |
| 1989 | 1 |
| 1990 | 1 |
| 1991 | 3 |
| 1992 | 1 |
| 1994 | 1 |
| 1995 | 2 |
| 1996 | 2 |
| 1998 | 2 |
| 1999 | 2 |
| 2000 | 1 |
| 2001 | 2 |
| 2002 | 1 |
| 2004 | 2 |
| 2007 | 1 |
| 2010 | 1 |
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 2 |
| 2020 | 1 |
| 2021 | 4 |
| 2022 | 3 |
| 2024 | 2 |