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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1956 | 2 |
| 1958 | 2 |
| 1962 | 1 |
| 1963 | 1 |
| 1964 | 2 |
| 1965 | 19 |
| 1966 | 35 |
| 1967 | 55 |
| 1968 | 64 |
| 1969 | 87 |
| 1970 | 102 |
| 1971 | 106 |
| 1972 | 112 |
| 1973 | 140 |
| 1974 | 151 |
| 1975 | 147 |
| 1976 | 145 |
| 1977 | 170 |
| 1978 | 161 |
| 1979 | 184 |
| 1980 | 190 |
| 1981 | 206 |
| 1982 | 221 |
| 1983 | 265 |
| 1984 | 366 |
| 1985 | 398 |
| 1986 | 388 |
| 1987 | 380 |
| 1988 | 386 |
| 1989 | 458 |
| 1990 | 474 |
| 1991 | 465 |
| 1992 | 495 |
| 1993 | 445 |
| 1994 | 500 |
| 1995 | 421 |
| 1996 | 489 |
| 1997 | 463 |
| 1998 | 470 |
| 1999 | 490 |
| 2000 | 525 |
| 2001 | 531 |
| 2002 | 592 |
| 2003 | 637 |
| 2004 | 603 |
| 2005 | 646 |
| 2006 | 730 |
| 2007 | 868 |
| 2008 | 869 |
| 2009 | 868 |
| 2010 | 961 |
| 2011 | 1004 |
| 2012 | 1053 |
| 2013 | 1181 |
| 2014 | 1239 |
| 2015 | 1223 |
| 2016 | 1113 |
| 2017 | 1109 |
| 2018 | 1251 |
| 2019 | 1244 |
| 2020 | 1190 |
| 2021 | 1039 |
| 2022 | 1061 |
| 2023 | 919 |
| 2024 | 301 |