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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1844 | 1 |
| 1847 | 1 |
| 1849 | 1 |
| 1850 | 1 |
| 1852 | 1 |
| 1912 | 1 |
| 1940 | 1 |
| 1946 | 2 |
| 1947 | 1 |
| 1948 | 2 |
| 1949 | 3 |
| 1950 | 1 |
| 1952 | 3 |
| 1953 | 2 |
| 1955 | 3 |
| 1956 | 1 |
| 1959 | 3 |
| 1960 | 3 |
| 1961 | 2 |
| 1963 | 3 |
| 1965 | 6 |
| 1966 | 8 |
| 1967 | 2 |
| 1968 | 4 |
| 1969 | 5 |
| 1970 | 5 |
| 1971 | 11 |
| 1972 | 16 |
| 1973 | 9 |
| 1974 | 16 |
| 1975 | 21 |
| 1976 | 11 |
| 1977 | 13 |
| 1978 | 14 |
| 1979 | 20 |
| 1980 | 20 |
| 1981 | 20 |
| 1982 | 18 |
| 1983 | 22 |
| 1984 | 27 |
| 1985 | 48 |
| 1986 | 40 |
| 1987 | 33 |
| 1988 | 34 |
| 1989 | 44 |
| 1990 | 46 |
| 1991 | 55 |
| 1992 | 47 |
| 1993 | 51 |
| 1994 | 53 |
| 1995 | 53 |
| 1996 | 59 |
| 1997 | 73 |
| 1998 | 64 |
| 1999 | 62 |
| 2000 | 76 |
| 2001 | 67 |
| 2002 | 64 |
| 2003 | 65 |
| 2004 | 58 |
| 2005 | 61 |
| 2006 | 74 |
| 2007 | 87 |
| 2008 | 76 |
| 2009 | 72 |
| 2010 | 85 |
| 2011 | 80 |
| 2012 | 99 |
| 2013 | 115 |
| 2014 | 111 |
| 2015 | 132 |
| 2016 | 134 |
| 2017 | 137 |
| 2018 | 135 |
| 2019 | 159 |
| 2020 | 166 |
| 2021 | 168 |
| 2022 | 160 |
| 2023 | 152 |
| 2024 | 151 |
| 2025 | 42 |