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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 4 |
| 1963 | 9 |
| 1964 | 12 |
| 1965 | 13 |
| 1966 | 9 |
| 1967 | 25 |
| 1968 | 14 |
| 1969 | 40 |
| 1970 | 20 |
| 1971 | 20 |
| 1972 | 38 |
| 1973 | 41 |
| 1974 | 44 |
| 1975 | 41 |
| 1976 | 23 |
| 1977 | 24 |
| 1978 | 13 |
| 1979 | 21 |
| 1980 | 14 |
| 1981 | 36 |
| 1982 | 81 |
| 1983 | 239 |
| 1984 | 293 |
| 1985 | 372 |
| 1986 | 339 |
| 1987 | 304 |
| 1988 | 254 |
| 1989 | 331 |
| 1990 | 333 |
| 1991 | 317 |
| 1992 | 299 |
| 1993 | 266 |
| 1994 | 337 |
| 1995 | 329 |
| 1996 | 380 |
| 1997 | 379 |
| 1998 | 378 |
| 1999 | 418 |
| 2000 | 402 |
| 2001 | 370 |
| 2002 | 487 |
| 2003 | 699 |
| 2004 | 860 |
| 2005 | 936 |
| 2006 | 883 |
| 2007 | 1026 |
| 2008 | 974 |
| 2009 | 1078 |
| 2010 | 1054 |
| 2011 | 1013 |
| 2012 | 1206 |
| 2013 | 1229 |
| 2014 | 1056 |
| 2015 | 933 |
| 2016 | 880 |
| 2017 | 804 |
| 2018 | 735 |
| 2019 | 683 |
| 2020 | 671 |
| 2021 | 490 |
| 2022 | 298 |
| 2023 | 212 |
| 2024 | 71 |