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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1844 | 1 |
| 1860 | 1 |
| 1942 | 1 |
| 1947 | 1 |
| 1948 | 3 |
| 1949 | 3 |
| 1950 | 8 |
| 1951 | 5 |
| 1952 | 6 |
| 1953 | 3 |
| 1954 | 10 |
| 1955 | 14 |
| 1956 | 11 |
| 1957 | 18 |
| 1958 | 12 |
| 1959 | 35 |
| 1960 | 22 |
| 1961 | 25 |
| 1962 | 14 |
| 1963 | 37 |
| 1964 | 25 |
| 1965 | 13 |
| 1966 | 25 |
| 1967 | 33 |
| 1968 | 38 |
| 1969 | 15 |
| 1970 | 8 |
| 1971 | 19 |
| 1972 | 10 |
| 1973 | 13 |
| 1974 | 22 |
| 1975 | 28 |
| 1976 | 24 |
| 1977 | 27 |
| 1978 | 25 |
| 1979 | 36 |
| 1980 | 33 |
| 1981 | 34 |
| 1982 | 38 |
| 1983 | 41 |
| 1984 | 39 |
| 1985 | 59 |
| 1986 | 55 |
| 1987 | 53 |
| 1988 | 90 |
| 1989 | 72 |
| 1990 | 77 |
| 1991 | 69 |
| 1992 | 93 |
| 1993 | 85 |
| 1994 | 69 |
| 1995 | 70 |
| 1996 | 77 |
| 1997 | 80 |
| 1998 | 78 |
| 1999 | 84 |
| 2000 | 100 |
| 2001 | 104 |
| 2002 | 106 |
| 2003 | 158 |
| 2004 | 142 |
| 2005 | 168 |
| 2006 | 162 |
| 2007 | 184 |
| 2008 | 207 |
| 2009 | 216 |
| 2010 | 210 |
| 2011 | 259 |
| 2012 | 289 |
| 2013 | 276 |
| 2014 | 326 |
| 2015 | 342 |
| 2016 | 367 |
| 2017 | 406 |
| 2018 | 407 |
| 2019 | 454 |
| 2020 | 535 |
| 2021 | 533 |
| 2022 | 499 |
| 2023 | 489 |
| 2024 | 423 |
| 2025 | 340 |