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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1956 | 3 |
| 1957 | 6 |
| 1958 | 5 |
| 1959 | 3 |
| 1960 | 4 |
| 1961 | 3 |
| 1962 | 4 |
| 1964 | 6 |
| 1965 | 37 |
| 1966 | 59 |
| 1967 | 103 |
| 1968 | 149 |
| 1969 | 156 |
| 1970 | 232 |
| 1971 | 244 |
| 1972 | 283 |
| 1973 | 320 |
| 1974 | 338 |
| 1975 | 267 |
| 1976 | 311 |
| 1977 | 299 |
| 1978 | 308 |
| 1979 | 280 |
| 1980 | 341 |
| 1981 | 332 |
| 1982 | 386 |
| 1983 | 311 |
| 1984 | 404 |
| 1985 | 422 |
| 1986 | 427 |
| 1987 | 435 |
| 1988 | 483 |
| 1989 | 504 |
| 1990 | 587 |
| 1991 | 550 |
| 1992 | 638 |
| 1993 | 595 |
| 1994 | 747 |
| 1995 | 667 |
| 1996 | 740 |
| 1997 | 670 |
| 1998 | 819 |
| 1999 | 860 |
| 2000 | 893 |
| 2001 | 912 |
| 2002 | 904 |
| 2003 | 786 |
| 2004 | 851 |
| 2005 | 840 |
| 2006 | 827 |
| 2007 | 982 |
| 2008 | 983 |
| 2009 | 926 |
| 2010 | 959 |
| 2011 | 1004 |
| 2012 | 1018 |
| 2013 | 972 |
| 2014 | 874 |
| 2015 | 929 |
| 2016 | 887 |
| 2017 | 750 |
| 2018 | 822 |
| 2019 | 821 |
| 2020 | 787 |
| 2021 | 606 |
| 2022 | 436 |
| 2023 | 346 |
| 2024 | 71 |