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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1881 | 1 |
| 1916 | 2 |
| 1917 | 3 |
| 1918 | 2 |
| 1919 | 1 |
| 1921 | 1 |
| 1934 | 2 |
| 1935 | 1 |
| 1937 | 1 |
| 1938 | 1 |
| 1939 | 3 |
| 1940 | 1 |
| 1942 | 4 |
| 1943 | 3 |
| 1945 | 2 |
| 1946 | 6 |
| 1947 | 13 |
| 1948 | 11 |
| 1949 | 7 |
| 1950 | 14 |
| 1951 | 16 |
| 1952 | 13 |
| 1953 | 16 |
| 1954 | 16 |
| 1955 | 16 |
| 1956 | 30 |
| 1957 | 25 |
| 1958 | 28 |
| 1959 | 30 |
| 1960 | 18 |
| 1961 | 34 |
| 1962 | 28 |
| 1963 | 37 |
| 1964 | 31 |
| 1965 | 43 |
| 1966 | 26 |
| 1967 | 37 |
| 1968 | 34 |
| 1969 | 29 |
| 1970 | 44 |
| 1971 | 55 |
| 1972 | 34 |
| 1973 | 53 |
| 1974 | 52 |
| 1975 | 54 |
| 1976 | 68 |
| 1977 | 61 |
| 1978 | 82 |
| 1979 | 82 |
| 1980 | 58 |
| 1981 | 62 |
| 1982 | 71 |
| 1983 | 78 |
| 1984 | 56 |
| 1985 | 69 |
| 1986 | 61 |
| 1987 | 85 |
| 1988 | 60 |
| 1989 | 66 |
| 1990 | 114 |
| 1991 | 104 |
| 1992 | 104 |
| 1993 | 106 |
| 1994 | 118 |
| 1995 | 126 |
| 1996 | 137 |
| 1997 | 143 |
| 1998 | 120 |
| 1999 | 127 |
| 2000 | 175 |
| 2001 | 135 |
| 2002 | 185 |
| 2003 | 171 |
| 2004 | 200 |
| 2005 | 253 |
| 2006 | 251 |
| 2007 | 269 |
| 2008 | 303 |
| 2009 | 321 |
| 2010 | 318 |
| 2011 | 303 |
| 2012 | 377 |
| 2013 | 338 |
| 2014 | 375 |
| 2015 | 373 |
| 2016 | 417 |
| 2017 | 407 |
| 2018 | 378 |
| 2019 | 426 |
| 2020 | 482 |
| 2021 | 468 |
| 2022 | 422 |
| 2023 | 401 |
| 2024 | 400 |
| 2025 | 387 |
| 2026 | 1 |