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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1872 | 1 |
| 1876 | 1 |
| 1878 | 1 |
| 1879 | 3 |
| 1880 | 1 |
| 1883 | 1 |
| 1884 | 5 |
| 1885 | 4 |
| 1888 | 1 |
| 1889 | 2 |
| 1892 | 2 |
| 1932 | 1 |
| 1933 | 2 |
| 1934 | 1 |
| 1935 | 5 |
| 1936 | 1 |
| 1937 | 2 |
| 1938 | 1 |
| 1939 | 1 |
| 1941 | 1 |
| 1942 | 1 |
| 1944 | 2 |
| 1945 | 4 |
| 1946 | 3 |
| 1947 | 7 |
| 1948 | 7 |
| 1949 | 2 |
| 1950 | 8 |
| 1951 | 11 |
| 1952 | 10 |
| 1953 | 3 |
| 1954 | 10 |
| 1955 | 15 |
| 1956 | 11 |
| 1957 | 10 |
| 1958 | 7 |
| 1959 | 7 |
| 1960 | 8 |
| 1961 | 9 |
| 1962 | 7 |
| 1963 | 10 |
| 1964 | 15 |
| 1965 | 14 |
| 1966 | 12 |
| 1967 | 13 |
| 1968 | 14 |
| 1969 | 31 |
| 1970 | 23 |
| 1971 | 36 |
| 1972 | 37 |
| 1973 | 27 |
| 1974 | 35 |
| 1975 | 38 |
| 1976 | 40 |
| 1977 | 30 |
| 1978 | 32 |
| 1979 | 32 |
| 1980 | 39 |
| 1981 | 42 |
| 1982 | 44 |
| 1983 | 38 |
| 1984 | 32 |
| 1985 | 50 |
| 1986 | 40 |
| 1987 | 58 |
| 1988 | 45 |
| 1989 | 42 |
| 1990 | 39 |
| 1991 | 56 |
| 1992 | 53 |
| 1993 | 59 |
| 1994 | 55 |
| 1995 | 60 |
| 1996 | 64 |
| 1997 | 71 |
| 1998 | 59 |
| 1999 | 61 |
| 2000 | 79 |
| 2001 | 100 |
| 2002 | 83 |
| 2003 | 82 |
| 2004 | 84 |
| 2005 | 96 |
| 2006 | 105 |
| 2007 | 113 |
| 2008 | 131 |
| 2009 | 112 |
| 2010 | 116 |
| 2011 | 142 |
| 2012 | 156 |
| 2013 | 148 |
| 2014 | 155 |
| 2015 | 153 |
| 2016 | 182 |
| 2017 | 166 |
| 2018 | 153 |
| 2019 | 154 |
| 2020 | 210 |
| 2021 | 223 |
| 2022 | 193 |
| 2023 | 90 |