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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1949 | 1 |
| 1954 | 1 |
| 1956 | 1 |
| 1957 | 1 |
| 1959 | 1 |
| 1961 | 1 |
| 1963 | 3 |
| 1965 | 1 |
| 1966 | 2 |
| 1967 | 1 |
| 1970 | 2 |
| 1971 | 1 |
| 1975 | 3 |
| 1976 | 1 |
| 1982 | 1 |
| 1983 | 3 |
| 1984 | 3 |
| 1985 | 2 |
| 1986 | 2 |
| 1988 | 2 |
| 1994 | 1 |
| 1995 | 1 |
| 1996 | 1 |
| 1997 | 1 |
| 1998 | 2 |
| 1999 | 3 |
| 2003 | 1 |
| 2006 | 1 |
| 2008 | 1 |
| 2009 | 1 |
| 2010 | 2 |
| 2011 | 1 |
| 2013 | 2 |
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 3 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 3 |