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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 9 |
| 1949 | 1 |
| 1953 | 1 |
| 1961 | 2 |
| 1962 | 4 |
| 1964 | 10 |
| 1965 | 120 |
| 1966 | 279 |
| 1967 | 338 |
| 1968 | 396 |
| 1969 | 430 |
| 1970 | 506 |
| 1971 | 510 |
| 1972 | 510 |
| 1973 | 527 |
| 1974 | 584 |
| 1975 | 514 |
| 1976 | 482 |
| 1977 | 598 |
| 1978 | 558 |
| 1979 | 605 |
| 1980 | 541 |
| 1981 | 539 |
| 1982 | 562 |
| 1983 | 600 |
| 1984 | 631 |
| 1985 | 746 |
| 1986 | 725 |
| 1987 | 717 |
| 1988 | 798 |
| 1989 | 866 |
| 1990 | 789 |
| 1991 | 711 |
| 1992 | 796 |
| 1993 | 869 |
| 1994 | 881 |
| 1995 | 886 |
| 1996 | 942 |
| 1997 | 1030 |
| 1998 | 1027 |
| 1999 | 1082 |
| 2000 | 1176 |
| 2001 | 1204 |
| 2002 | 1202 |
| 2003 | 1336 |
| 2004 | 1390 |
| 2005 | 1611 |
| 2006 | 1747 |
| 2007 | 1921 |
| 2008 | 1922 |
| 2009 | 2141 |
| 2010 | 2324 |
| 2011 | 2448 |
| 2012 | 2535 |
| 2013 | 2627 |
| 2014 | 2640 |
| 2015 | 2389 |
| 2016 | 2371 |
| 2017 | 2368 |
| 2018 | 2278 |
| 2019 | 2195 |
| 2020 | 2101 |
| 2021 | 1904 |
| 2022 | 1561 |
| 2023 | 1329 |
| 2024 | 393 |