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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1956 | 1 |
| 1960 | 1 |
| 1966 | 10 |
| 1967 | 5 |
| 1968 | 5 |
| 1970 | 1 |
| 1971 | 1 |
| 1972 | 3 |
| 1973 | 3 |
| 1974 | 8 |
| 1975 | 72 |
| 1976 | 100 |
| 1977 | 175 |
| 1978 | 234 |
| 1979 | 470 |
| 1980 | 507 |
| 1981 | 431 |
| 1982 | 510 |
| 1983 | 486 |
| 1984 | 434 |
| 1985 | 384 |
| 1986 | 417 |
| 1987 | 366 |
| 1988 | 465 |
| 1989 | 536 |
| 1990 | 545 |
| 1991 | 506 |
| 1992 | 626 |
| 1993 | 686 |
| 1994 | 847 |
| 1995 | 843 |
| 1996 | 801 |
| 1997 | 812 |
| 1998 | 904 |
| 1999 | 828 |
| 2000 | 1083 |
| 2001 | 1369 |
| 2002 | 1357 |
| 2003 | 1314 |
| 2004 | 1984 |
| 2005 | 2182 |
| 2006 | 2122 |
| 2007 | 2154 |
| 2008 | 2262 |
| 2009 | 2179 |
| 2010 | 2026 |
| 2011 | 1710 |
| 2012 | 1532 |
| 2013 | 1493 |
| 2014 | 1120 |
| 2015 | 1000 |
| 2016 | 869 |
| 2017 | 824 |
| 2018 | 727 |
| 2019 | 558 |
| 2020 | 407 |
| 2021 | 202 |
| 2022 | 122 |
| 2023 | 112 |
| 2024 | 104 |