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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1878 | 1 |
| 1880 | 1 |
| 1922 | 2 |
| 1933 | 1 |
| 1946 | 6 |
| 1947 | 9 |
| 1948 | 13 |
| 1949 | 7 |
| 1950 | 6 |
| 1951 | 16 |
| 1952 | 13 |
| 1953 | 19 |
| 1954 | 23 |
| 1955 | 23 |
| 1956 | 22 |
| 1957 | 34 |
| 1958 | 28 |
| 1959 | 35 |
| 1960 | 28 |
| 1961 | 25 |
| 1962 | 18 |
| 1963 | 21 |
| 1964 | 36 |
| 1965 | 31 |
| 1966 | 42 |
| 1967 | 36 |
| 1968 | 37 |
| 1969 | 46 |
| 1970 | 40 |
| 1971 | 42 |
| 1972 | 51 |
| 1973 | 60 |
| 1974 | 74 |
| 1975 | 68 |
| 1976 | 69 |
| 1977 | 92 |
| 1978 | 97 |
| 1979 | 80 |
| 1980 | 77 |
| 1981 | 105 |
| 1982 | 88 |
| 1983 | 82 |
| 1984 | 91 |
| 1985 | 89 |
| 1986 | 85 |
| 1987 | 102 |
| 1988 | 112 |
| 1989 | 111 |
| 1990 | 132 |
| 1991 | 132 |
| 1992 | 126 |
| 1993 | 109 |
| 1994 | 97 |
| 1995 | 114 |
| 1996 | 97 |
| 1997 | 124 |
| 1998 | 129 |
| 1999 | 140 |
| 2000 | 139 |
| 2001 | 142 |
| 2002 | 157 |
| 2003 | 166 |
| 2004 | 179 |
| 2005 | 178 |
| 2006 | 197 |
| 2007 | 210 |
| 2008 | 200 |
| 2009 | 208 |
| 2010 | 261 |
| 2011 | 261 |
| 2012 | 298 |
| 2013 | 279 |
| 2014 | 335 |
| 2015 | 345 |
| 2016 | 351 |
| 2017 | 362 |
| 2018 | 338 |
| 2019 | 349 |
| 2020 | 447 |
| 2021 | 418 |
| 2022 | 372 |
| 2023 | 368 |
| 2024 | 172 |