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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 |
| 1950 | 3 |
| 1953 | 2 |
| 1954 | 1 |
| 1955 | 3 |
| 1956 | 4 |
| 1957 | 2 |
| 1958 | 5 |
| 1959 | 2 |
| 1960 | 4 |
| 1962 | 2 |
| 1964 | 4 |
| 1965 | 1 |
| 1966 | 3 |
| 1967 | 2 |
| 1968 | 1 |
| 1969 | 1 |
| 1970 | 1 |
| 1971 | 1 |
| 1974 | 1 |
| 1985 | 2 |
| 1987 | 1 |
| 1988 | 1 |
| 2003 | 1 |
| 2007 | 3 |
| 2009 | 1 |
| 2011 | 4 |
| 2012 | 3 |
| 2014 | 1 |
| 2016 | 1 |
| 2020 | 1 |
| 2025 | 0 |