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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1956 | 2 |
| 1957 | 1 |
| 1958 | 2 |
| 1959 | 3 |
| 1960 | 2 |
| 1961 | 1 |
| 1962 | 1 |
| 1966 | 2 |
| 1967 | 2 |
| 1969 | 1 |
| 1971 | 1 |
| 1988 | 2 |
| 1989 | 1 |
| 1991 | 1 |
| 1992 | 1 |
| 1993 | 1 |
| 1994 | 2 |
| 1995 | 1 |
| 1996 | 1 |
| 1997 | 1 |
| 2005 | 1 |
| 2006 | 2 |
| 2007 | 1 |
| 2008 | 4 |
| 2010 | 1 |
| 2012 | 1 |
| 2013 | 1 |
| 2015 | 3 |
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 6 |
| 2020 | 6 |
| 2021 | 9 |
| 2022 | 8 |
| 2023 | 9 |
| 2024 | 12 |
| 2025 | 7 |