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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1869 | 1 |
| 1873 | 1 |
| 1874 | 3 |
| 1875 | 3 |
| 1876 | 1 |
| 1878 | 1 |
| 1884 | 1 |
| 1915 | 1 |
| 1917 | 1 |
| 1929 | 1 |
| 1933 | 1 |
| 1936 | 1 |
| 1938 | 1 |
| 1939 | 1 |
| 1940 | 2 |
| 1941 | 5 |
| 1942 | 3 |
| 1946 | 2 |
| 1947 | 5 |
| 1948 | 4 |
| 1949 | 2 |
| 1950 | 5 |
| 1951 | 9 |
| 1952 | 8 |
| 1953 | 6 |
| 1954 | 5 |
| 1955 | 4 |
| 1956 | 7 |
| 1957 | 7 |
| 1958 | 9 |
| 1959 | 6 |
| 1960 | 13 |
| 1961 | 7 |
| 1962 | 5 |
| 1963 | 1 |
| 1964 | 14 |
| 1965 | 6 |
| 1966 | 11 |
| 1967 | 19 |
| 1968 | 20 |
| 1969 | 26 |
| 1970 | 16 |
| 1971 | 22 |
| 1972 | 23 |
| 1973 | 21 |
| 1974 | 21 |
| 1975 | 17 |
| 1976 | 25 |
| 1977 | 28 |
| 1978 | 27 |
| 1979 | 33 |
| 1980 | 28 |
| 1981 | 32 |
| 1982 | 33 |
| 1983 | 55 |
| 1984 | 41 |
| 1985 | 59 |
| 1986 | 57 |
| 1987 | 66 |
| 1988 | 65 |
| 1989 | 63 |
| 1990 | 61 |
| 1991 | 70 |
| 1992 | 65 |
| 1993 | 78 |
| 1994 | 73 |
| 1995 | 86 |
| 1996 | 80 |
| 1997 | 117 |
| 1998 | 66 |
| 1999 | 72 |
| 2000 | 87 |
| 2001 | 95 |
| 2002 | 88 |
| 2003 | 103 |
| 2004 | 94 |
| 2005 | 124 |
| 2006 | 133 |
| 2007 | 157 |
| 2008 | 146 |
| 2009 | 163 |
| 2010 | 193 |
| 2011 | 258 |
| 2012 | 293 |
| 2013 | 288 |
| 2014 | 287 |
| 2015 | 304 |
| 2016 | 271 |
| 2017 | 279 |
| 2018 | 274 |
| 2019 | 311 |
| 2020 | 347 |
| 2021 | 322 |
| 2022 | 341 |
| 2023 | 346 |
| 2024 | 314 |
| 2025 | 1 |