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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1805 | 1 |
| 1806 | 3 |
| 1818 | 1 |
| 1819 | 1 |
| 1820 | 2 |
| 1821 | 2 |
| 1860 | 1 |
| 1866 | 1 |
| 1867 | 2 |
| 1910 | 2 |
| 1913 | 1 |
| 1919 | 1 |
| 1925 | 1 |
| 1927 | 1 |
| 1950 | 1 |
| 1951 | 3 |
| 1955 | 1 |
| 1957 | 5 |
| 1958 | 3 |
| 1959 | 2 |
| 1960 | 2 |
| 1961 | 8 |
| 1962 | 9 |
| 1963 | 10 |
| 1964 | 5 |
| 1965 | 14 |
| 1966 | 6 |
| 1967 | 6 |
| 1968 | 7 |
| 1969 | 10 |
| 1970 | 11 |
| 1971 | 10 |
| 1972 | 13 |
| 1973 | 25 |
| 1974 | 17 |
| 1975 | 28 |
| 1976 | 24 |
| 1977 | 22 |
| 1978 | 34 |
| 1979 | 37 |
| 1980 | 36 |
| 1981 | 36 |
| 1982 | 47 |
| 1983 | 36 |
| 1984 | 26 |
| 1985 | 48 |
| 1986 | 42 |
| 1987 | 49 |
| 1988 | 56 |
| 1989 | 67 |
| 1990 | 49 |
| 1991 | 81 |
| 1992 | 58 |
| 1993 | 59 |
| 1994 | 79 |
| 1995 | 86 |
| 1996 | 74 |
| 1997 | 75 |
| 1998 | 73 |
| 1999 | 90 |
| 2000 | 76 |
| 2001 | 78 |
| 2002 | 92 |
| 2003 | 88 |
| 2004 | 96 |
| 2005 | 124 |
| 2006 | 147 |
| 2007 | 146 |
| 2008 | 170 |
| 2009 | 175 |
| 2010 | 163 |
| 2011 | 193 |
| 2012 | 227 |
| 2013 | 223 |
| 2014 | 247 |
| 2015 | 218 |
| 2016 | 248 |
| 2017 | 258 |
| 2018 | 271 |
| 2019 | 261 |
| 2020 | 349 |
| 2021 | 336 |
| 2022 | 282 |
| 2023 | 194 |