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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1800 | 1 |
| 1801 | 1 |
| 1810 | 1 |
| 1811 | 1 |
| 1816 | 6 |
| 1817 | 11 |
| 1818 | 2 |
| 1870 | 3 |
| 1871 | 5 |
| 1872 | 7 |
| 1874 | 1 |
| 1875 | 1 |
| 1882 | 1 |
| 1888 | 1 |
| 1895 | 1 |
| 1897 | 1 |
| 1931 | 1 |
| 1944 | 1 |
| 1945 | 2 |
| 1946 | 4 |
| 1947 | 3 |
| 1948 | 10 |
| 1949 | 4 |
| 1950 | 1 |
| 1951 | 2 |
| 1952 | 2 |
| 1953 | 2 |
| 1954 | 3 |
| 1955 | 3 |
| 1956 | 5 |
| 1957 | 3 |
| 1958 | 4 |
| 1959 | 8 |
| 1960 | 3 |
| 1961 | 12 |
| 1962 | 6 |
| 1963 | 9 |
| 1964 | 9 |
| 1965 | 14 |
| 1966 | 4 |
| 1967 | 19 |
| 1968 | 9 |
| 1969 | 13 |
| 1970 | 26 |
| 1971 | 21 |
| 1972 | 21 |
| 1973 | 24 |
| 1974 | 29 |
| 1975 | 39 |
| 1976 | 23 |
| 1977 | 23 |
| 1978 | 34 |
| 1979 | 32 |
| 1980 | 44 |
| 1981 | 32 |
| 1982 | 41 |
| 1983 | 42 |
| 1984 | 48 |
| 1985 | 51 |
| 1986 | 39 |
| 1987 | 34 |
| 1988 | 48 |
| 1989 | 55 |
| 1990 | 59 |
| 1991 | 52 |
| 1992 | 65 |
| 1993 | 70 |
| 1994 | 51 |
| 1995 | 68 |
| 1996 | 67 |
| 1997 | 67 |
| 1998 | 70 |
| 1999 | 67 |
| 2000 | 69 |
| 2001 | 88 |
| 2002 | 82 |
| 2003 | 62 |
| 2004 | 84 |
| 2005 | 91 |
| 2006 | 90 |
| 2007 | 75 |
| 2008 | 86 |
| 2009 | 101 |
| 2010 | 95 |
| 2011 | 96 |
| 2012 | 101 |
| 2013 | 120 |
| 2014 | 131 |
| 2015 | 125 |
| 2016 | 145 |
| 2017 | 158 |
| 2018 | 158 |
| 2019 | 143 |
| 2020 | 183 |
| 2021 | 200 |
| 2022 | 178 |
| 2023 | 59 |