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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1879 | 1 |
| 1927 | 1 |
| 1930 | 1 |
| 1932 | 1 |
| 1934 | 1 |
| 1935 | 1 |
| 1946 | 6 |
| 1947 | 10 |
| 1948 | 5 |
| 1949 | 3 |
| 1950 | 2 |
| 1951 | 6 |
| 1952 | 3 |
| 1953 | 5 |
| 1954 | 8 |
| 1955 | 7 |
| 1956 | 7 |
| 1957 | 8 |
| 1958 | 11 |
| 1959 | 11 |
| 1960 | 10 |
| 1961 | 7 |
| 1962 | 14 |
| 1963 | 11 |
| 1964 | 26 |
| 1965 | 17 |
| 1966 | 9 |
| 1967 | 19 |
| 1968 | 19 |
| 1969 | 37 |
| 1970 | 32 |
| 1971 | 34 |
| 1972 | 27 |
| 1973 | 35 |
| 1974 | 34 |
| 1975 | 51 |
| 1976 | 38 |
| 1977 | 51 |
| 1978 | 53 |
| 1979 | 54 |
| 1980 | 46 |
| 1981 | 63 |
| 1982 | 64 |
| 1983 | 58 |
| 1984 | 66 |
| 1985 | 68 |
| 1986 | 67 |
| 1987 | 62 |
| 1988 | 78 |
| 1989 | 76 |
| 1990 | 80 |
| 1991 | 86 |
| 1992 | 91 |
| 1993 | 98 |
| 1994 | 105 |
| 1995 | 95 |
| 1996 | 106 |
| 1997 | 95 |
| 1998 | 94 |
| 1999 | 101 |
| 2000 | 98 |
| 2001 | 115 |
| 2002 | 95 |
| 2003 | 128 |
| 2004 | 105 |
| 2005 | 108 |
| 2006 | 119 |
| 2007 | 104 |
| 2008 | 133 |
| 2009 | 117 |
| 2010 | 145 |
| 2011 | 150 |
| 2012 | 183 |
| 2013 | 173 |
| 2014 | 183 |
| 2015 | 190 |
| 2016 | 189 |
| 2017 | 181 |
| 2018 | 258 |
| 2019 | 242 |
| 2020 | 258 |
| 2021 | 259 |
| 2022 | 229 |
| 2023 | 52 |