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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1912 | 1 |
| 1915 | 2 |
| 1917 | 1 |
| 1921 | 1 |
| 1922 | 1 |
| 1924 | 1 |
| 1926 | 2 |
| 1927 | 2 |
| 1929 | 1 |
| 1931 | 1 |
| 1933 | 1 |
| 1936 | 2 |
| 1937 | 2 |
| 1939 | 1 |
| 1941 | 1 |
| 1946 | 3 |
| 1947 | 2 |
| 1948 | 1 |
| 1949 | 4 |
| 1950 | 7 |
| 1951 | 4 |
| 1953 | 2 |
| 1954 | 1 |
| 1955 | 3 |
| 1956 | 1 |
| 1957 | 5 |
| 1958 | 1 |
| 1971 | 1 |
| 1972 | 1 |
| 1974 | 2 |
| 1977 | 1 |
| 1979 | 2 |
| 1981 | 1 |
| 1982 | 1 |
| 1983 | 1 |
| 1984 | 1 |
| 1985 | 3 |
| 1986 | 6 |
| 1988 | 2 |
| 1991 | 1 |
| 1992 | 3 |
| 1993 | 2 |
| 1994 | 2 |
| 1996 | 1 |
| 1997 | 2 |
| 1998 | 2 |
| 1999 | 1 |
| 2000 | 1 |
| 2002 | 4 |
| 2003 | 1 |
| 2004 | 3 |
| 2005 | 8 |
| 2006 | 5 |
| 2007 | 7 |
| 2008 | 9 |
| 2009 | 2 |
| 2013 | 2 |
| 2014 | 3 |
| 2015 | 1 |
| 2017 | 2 |
| 2018 | 1 |
| 2020 | 2 |
| 2021 | 1 |