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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1948 | 1 |
| 1949 | 3 |
| 1955 | 1 |
| 1956 | 1 |
| 1957 | 1 |
| 1958 | 3 |
| 1959 | 2 |
| 1962 | 1 |
| 1963 | 2 |
| 1964 | 1 |
| 1967 | 4 |
| 1968 | 3 |
| 1969 | 1 |
| 1971 | 1 |
| 1986 | 1 |
| 1987 | 1 |
| 1989 | 1 |
| 1995 | 1 |
| 1999 | 1 |
| 2000 | 2 |
| 2004 | 3 |
| 2005 | 2 |
| 2006 | 4 |
| 2008 | 1 |
| 2009 | 1 |
| 2011 | 1 |
| 2013 | 1 |
| 2015 | 1 |
| 2018 | 1 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2024 | 0 |