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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 1 |
| 1954 | 4 |
| 1955 | 4 |
| 1956 | 4 |
| 1957 | 4 |
| 1958 | 6 |
| 1959 | 1 |
| 1960 | 5 |
| 1961 | 6 |
| 1962 | 16 |
| 1963 | 34 |
| 1964 | 33 |
| 1965 | 18 |
| 1967 | 1 |
| 1968 | 3 |
| 1969 | 5 |
| 1970 | 45 |
| 1971 | 64 |
| 1972 | 75 |
| 1973 | 80 |
| 1974 | 77 |
| 1975 | 104 |
| 1976 | 116 |
| 1977 | 140 |
| 1978 | 193 |
| 1979 | 225 |
| 1980 | 199 |
| 1981 | 172 |
| 1982 | 204 |
| 1983 | 278 |
| 1984 | 362 |
| 1985 | 299 |
| 1986 | 361 |
| 1987 | 385 |
| 1988 | 479 |
| 1989 | 606 |
| 1990 | 459 |
| 1991 | 540 |
| 1992 | 774 |
| 1993 | 933 |
| 1994 | 812 |
| 1995 | 769 |
| 1996 | 701 |
| 1997 | 614 |
| 1998 | 625 |
| 1999 | 529 |
| 2000 | 628 |
| 2001 | 783 |
| 2002 | 730 |
| 2003 | 753 |
| 2004 | 818 |
| 2005 | 760 |
| 2006 | 753 |
| 2007 | 878 |
| 2008 | 913 |
| 2009 | 918 |
| 2010 | 971 |
| 2011 | 983 |
| 2012 | 1113 |
| 2013 | 1130 |
| 2014 | 1053 |
| 2015 | 1057 |
| 2016 | 994 |
| 2017 | 942 |
| 2018 | 886 |
| 2019 | 780 |
| 2020 | 926 |
| 2021 | 869 |
| 2022 | 728 |
| 2023 | 672 |
| 2024 | 1038 |
| 2025 | 430 |