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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1840 | 1 |
| 1869 | 1 |
| 1871 | 1 |
| 1877 | 1 |
| 1879 | 2 |
| 1881 | 1 |
| 1882 | 1 |
| 1883 | 1 |
| 1884 | 1 |
| 1897 | 1 |
| 1906 | 1 |
| 1911 | 1 |
| 1912 | 1 |
| 1913 | 1 |
| 1914 | 1 |
| 1915 | 3 |
| 1920 | 1 |
| 1922 | 2 |
| 1923 | 1 |
| 1928 | 1 |
| 1930 | 1 |
| 1931 | 5 |
| 1932 | 1 |
| 1933 | 2 |
| 1935 | 1 |
| 1937 | 1 |
| 1939 | 1 |
| 1941 | 1 |
| 1944 | 2 |
| 1945 | 5 |
| 1946 | 5 |
| 1947 | 2 |
| 1948 | 1 |
| 1949 | 3 |
| 1950 | 3 |
| 1951 | 6 |
| 1952 | 6 |
| 1953 | 5 |
| 1954 | 2 |
| 1955 | 8 |
| 1956 | 9 |
| 1957 | 4 |
| 1958 | 4 |
| 1959 | 8 |
| 1960 | 2 |
| 1961 | 2 |
| 1962 | 10 |
| 1963 | 8 |
| 1964 | 2 |
| 1965 | 7 |
| 1966 | 9 |
| 1967 | 15 |
| 1968 | 17 |
| 1969 | 15 |
| 1970 | 19 |
| 1971 | 14 |
| 1972 | 15 |
| 1973 | 17 |
| 1974 | 19 |
| 1975 | 18 |
| 1976 | 22 |
| 1977 | 19 |
| 1978 | 26 |
| 1979 | 25 |
| 1980 | 14 |
| 1981 | 22 |
| 1982 | 30 |
| 1983 | 37 |
| 1984 | 31 |
| 1985 | 33 |
| 1986 | 33 |
| 1987 | 38 |
| 1988 | 43 |
| 1989 | 35 |
| 1990 | 53 |
| 1991 | 66 |
| 1992 | 45 |
| 1993 | 60 |
| 1994 | 58 |
| 1995 | 72 |
| 1996 | 67 |
| 1997 | 74 |
| 1998 | 68 |
| 1999 | 90 |
| 2000 | 79 |
| 2001 | 100 |
| 2002 | 96 |
| 2003 | 101 |
| 2004 | 127 |
| 2005 | 115 |
| 2006 | 124 |
| 2007 | 145 |
| 2008 | 128 |
| 2009 | 174 |
| 2010 | 184 |
| 2011 | 208 |
| 2012 | 202 |
| 2013 | 193 |
| 2014 | 173 |
| 2015 | 194 |
| 2016 | 177 |
| 2017 | 207 |
| 2018 | 207 |
| 2019 | 151 |
| 2020 | 186 |
| 2021 | 239 |
| 2022 | 227 |
| 2023 | 209 |
| 2024 | 194 |
| 2025 | 71 |