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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1859 | 1 |
| 1867 | 1 |
| 1898 | 1 |
| 1905 | 1 |
| 1910 | 1 |
| 1921 | 1 |
| 1928 | 2 |
| 1930 | 1 |
| 1931 | 1 |
| 1936 | 1 |
| 1938 | 1 |
| 1947 | 1 |
| 1949 | 1 |
| 1950 | 3 |
| 1951 | 2 |
| 1952 | 8 |
| 1953 | 9 |
| 1954 | 6 |
| 1955 | 5 |
| 1956 | 6 |
| 1957 | 3 |
| 1958 | 7 |
| 1959 | 9 |
| 1960 | 4 |
| 1961 | 7 |
| 1962 | 7 |
| 1963 | 2 |
| 1964 | 7 |
| 1965 | 5 |
| 1966 | 6 |
| 1967 | 6 |
| 1968 | 10 |
| 1969 | 8 |
| 1970 | 9 |
| 1971 | 16 |
| 1972 | 11 |
| 1973 | 7 |
| 1974 | 16 |
| 1975 | 29 |
| 1976 | 25 |
| 1977 | 25 |
| 1978 | 24 |
| 1979 | 19 |
| 1980 | 20 |
| 1981 | 8 |
| 1982 | 22 |
| 1983 | 30 |
| 1984 | 23 |
| 1985 | 24 |
| 1986 | 37 |
| 1987 | 30 |
| 1988 | 30 |
| 1989 | 43 |
| 1990 | 55 |
| 1991 | 41 |
| 1992 | 43 |
| 1993 | 68 |
| 1994 | 69 |
| 1995 | 50 |
| 1996 | 57 |
| 1997 | 43 |
| 1998 | 60 |
| 1999 | 66 |
| 2000 | 64 |
| 2001 | 89 |
| 2002 | 66 |
| 2003 | 83 |
| 2004 | 105 |
| 2005 | 98 |
| 2006 | 148 |
| 2007 | 139 |
| 2008 | 148 |
| 2009 | 164 |
| 2010 | 187 |
| 2011 | 207 |
| 2012 | 211 |
| 2013 | 278 |
| 2014 | 616 |
| 2015 | 682 |
| 2016 | 718 |
| 2017 | 686 |
| 2018 | 793 |
| 2019 | 989 |
| 2020 | 1261 |
| 2021 | 1505 |
| 2022 | 1621 |
| 2023 | 1868 |
| 2024 | 2213 |
| 2025 | 2580 |
| 2026 | 1551 |