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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1859 | 1 |
| 1892 | 1 |
| 1905 | 1 |
| 1917 | 2 |
| 1927 | 1 |
| 1935 | 1 |
| 1936 | 1 |
| 1937 | 1 |
| 1938 | 3 |
| 1939 | 2 |
| 1940 | 2 |
| 1943 | 1 |
| 1944 | 1 |
| 1945 | 8 |
| 1946 | 8 |
| 1947 | 10 |
| 1948 | 5 |
| 1949 | 8 |
| 1950 | 8 |
| 1951 | 11 |
| 1952 | 9 |
| 1953 | 8 |
| 1954 | 6 |
| 1955 | 9 |
| 1956 | 5 |
| 1957 | 14 |
| 1958 | 14 |
| 1959 | 16 |
| 1960 | 25 |
| 1961 | 19 |
| 1962 | 14 |
| 1963 | 4 |
| 1964 | 17 |
| 1965 | 27 |
| 1966 | 10 |
| 1967 | 26 |
| 1968 | 30 |
| 1969 | 31 |
| 1970 | 16 |
| 1971 | 10 |
| 1972 | 27 |
| 1973 | 35 |
| 1974 | 27 |
| 1975 | 31 |
| 1976 | 28 |
| 1977 | 26 |
| 1978 | 35 |
| 1979 | 36 |
| 1980 | 33 |
| 1981 | 40 |
| 1982 | 49 |
| 1983 | 31 |
| 1984 | 41 |
| 1985 | 50 |
| 1986 | 48 |
| 1987 | 44 |
| 1988 | 41 |
| 1989 | 52 |
| 1990 | 76 |
| 1991 | 98 |
| 1992 | 85 |
| 1993 | 62 |
| 1994 | 86 |
| 1995 | 93 |
| 1996 | 93 |
| 1997 | 106 |
| 1998 | 109 |
| 1999 | 84 |
| 2000 | 105 |
| 2001 | 111 |
| 2002 | 122 |
| 2003 | 132 |
| 2004 | 130 |
| 2005 | 157 |
| 2006 | 148 |
| 2007 | 161 |
| 2008 | 185 |
| 2009 | 232 |
| 2010 | 218 |
| 2011 | 276 |
| 2012 | 314 |
| 2013 | 295 |
| 2014 | 337 |
| 2015 | 326 |
| 2016 | 313 |
| 2017 | 338 |
| 2018 | 343 |
| 2019 | 345 |
| 2020 | 413 |
| 2021 | 462 |
| 2022 | 431 |
| 2023 | 422 |
| 2024 | 418 |
| 2025 | 398 |
| 2026 | 2 |