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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1916 | 1 |
| 1946 | 1 |
| 1949 | 1 |
| 1950 | 1 |
| 1951 | 1 |
| 1952 | 1 |
| 1955 | 1 |
| 1958 | 1 |
| 1959 | 2 |
| 1960 | 3 |
| 1961 | 1 |
| 1964 | 1 |
| 1967 | 5 |
| 1968 | 1 |
| 1970 | 3 |
| 1972 | 3 |
| 1973 | 5 |
| 1974 | 3 |
| 1975 | 1 |
| 1976 | 5 |
| 1977 | 11 |
| 1978 | 15 |
| 1979 | 23 |
| 1980 | 25 |
| 1981 | 25 |
| 1982 | 20 |
| 1983 | 29 |
| 1984 | 18 |
| 1985 | 6 |
| 1986 | 14 |
| 1987 | 6 |
| 1988 | 6 |
| 1989 | 1 |
| 1990 | 3 |
| 1991 | 1 |
| 1992 | 1 |
| 1993 | 1 |
| 1996 | 2 |
| 1999 | 1 |
| 2004 | 2 |
| 2008 | 2 |
| 2011 | 1 |
| 2012 | 1 |
| 2013 | 2 |
| 2015 | 1 |
| 2016 | 2 |
| 2018 | 1 |
| 2020 | 1 |
| 2023 | 2 |
| 2024 | 1 |