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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 5 |
| 1949 | 1 |
| 1950 | 3 |
| 1951 | 2 |
| 1952 | 3 |
| 1953 | 3 |
| 1954 | 2 |
| 1955 | 2 |
| 1956 | 1 |
| 1957 | 1 |
| 1958 | 1 |
| 1959 | 1 |
| 1963 | 1 |
| 1966 | 4 |
| 1968 | 1 |
| 1969 | 1 |
| 1989 | 1 |
| 1990 | 1 |
| 1992 | 1 |
| 1996 | 1 |
| 2008 | 1 |
| 2009 | 1 |
| 2010 | 1 |
| 2013 | 1 |
| 2014 | 1 |
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 1 |
| 2025 | 0 |