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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1839 | 1 |
| 1884 | 1 |
| 1895 | 1 |
| 1927 | 1 |
| 1934 | 1 |
| 1949 | 2 |
| 1950 | 1 |
| 1951 | 1 |
| 1952 | 2 |
| 1953 | 2 |
| 1955 | 2 |
| 1956 | 2 |
| 1957 | 3 |
| 1958 | 2 |
| 1959 | 1 |
| 1960 | 4 |
| 1961 | 1 |
| 1962 | 2 |
| 1963 | 5 |
| 1964 | 5 |
| 1965 | 2 |
| 1966 | 3 |
| 1967 | 5 |
| 1968 | 1 |
| 1969 | 2 |
| 1970 | 4 |
| 1971 | 2 |
| 1972 | 4 |
| 1973 | 5 |
| 1974 | 3 |
| 1975 | 35 |
| 1976 | 34 |
| 1977 | 40 |
| 1978 | 41 |
| 1979 | 34 |
| 1980 | 64 |
| 1981 | 61 |
| 1982 | 58 |
| 1983 | 57 |
| 1984 | 51 |
| 1985 | 74 |
| 1986 | 79 |
| 1987 | 79 |
| 1988 | 85 |
| 1989 | 100 |
| 1990 | 120 |
| 1991 | 114 |
| 1992 | 129 |
| 1993 | 127 |
| 1994 | 118 |
| 1995 | 130 |
| 1996 | 124 |
| 1997 | 154 |
| 1998 | 163 |
| 1999 | 185 |
| 2000 | 194 |
| 2001 | 198 |
| 2002 | 195 |
| 2003 | 221 |
| 2004 | 216 |
| 2005 | 252 |
| 2006 | 216 |
| 2007 | 246 |
| 2008 | 258 |
| 2009 | 287 |
| 2010 | 318 |
| 2011 | 362 |
| 2012 | 431 |
| 2013 | 479 |
| 2014 | 541 |
| 2015 | 623 |
| 2016 | 518 |
| 2017 | 487 |
| 2018 | 613 |
| 2019 | 551 |
| 2020 | 602 |
| 2021 | 630 |
| 2022 | 602 |
| 2023 | 563 |
| 2024 | 180 |