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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1932 | 2 |
| 1933 | 1 |
| 1934 | 1 |
| 1935 | 7 |
| 1936 | 3 |
| 1937 | 1 |
| 1939 | 2 |
| 1940 | 5 |
| 1941 | 1 |
| 1942 | 2 |
| 1943 | 7 |
| 1944 | 2 |
| 1945 | 5 |
| 1946 | 15 |
| 1947 | 18 |
| 1948 | 25 |
| 1949 | 16 |
| 1950 | 10 |
| 1951 | 23 |
| 1952 | 19 |
| 1953 | 19 |
| 1954 | 25 |
| 1955 | 21 |
| 1956 | 24 |
| 1957 | 20 |
| 1958 | 14 |
| 1959 | 20 |
| 1960 | 14 |
| 1961 | 25 |
| 1962 | 18 |
| 1963 | 17 |
| 1964 | 21 |
| 1965 | 21 |
| 1966 | 28 |
| 1967 | 11 |
| 1968 | 16 |
| 1969 | 8 |
| 1970 | 5 |
| 1971 | 3 |
| 1972 | 6 |
| 1973 | 3 |
| 1974 | 5 |
| 1975 | 6 |
| 1976 | 7 |
| 1977 | 2 |
| 1978 | 3 |
| 1979 | 5 |
| 1980 | 3 |
| 1981 | 1 |
| 1982 | 2 |
| 1984 | 1 |
| 1988 | 2 |
| 1990 | 3 |
| 1991 | 1 |
| 1992 | 1 |
| 1999 | 1 |
| 2025 | 0 |