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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1855 | 1 |
| 1869 | 1 |
| 1918 | 1 |
| 1923 | 1 |
| 1932 | 2 |
| 1933 | 1 |
| 1935 | 1 |
| 1937 | 1 |
| 1939 | 3 |
| 1942 | 1 |
| 1943 | 1 |
| 1946 | 2 |
| 1947 | 6 |
| 1948 | 8 |
| 1949 | 11 |
| 1950 | 8 |
| 1951 | 9 |
| 1952 | 14 |
| 1953 | 6 |
| 1954 | 8 |
| 1955 | 5 |
| 1956 | 4 |
| 1957 | 5 |
| 1958 | 2 |
| 1980 | 1 |
| 1981 | 2 |
| 1986 | 1 |
| 1987 | 2 |
| 1988 | 1 |
| 1989 | 3 |
| 1990 | 3 |
| 1993 | 1 |
| 1995 | 2 |
| 1996 | 1 |
| 2002 | 1 |
| 2003 | 1 |
| 2004 | 1 |
| 2005 | 1 |
| 2006 | 1 |
| 2007 | 1 |
| 2008 | 1 |
| 2010 | 2 |
| 2014 | 1 |
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 3 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 2 |