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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 3 |
| 1965 | 2 |
| 1966 | 82 |
| 1967 | 108 |
| 1968 | 144 |
| 1969 | 129 |
| 1970 | 135 |
| 1971 | 172 |
| 1972 | 146 |
| 1973 | 145 |
| 1974 | 174 |
| 1975 | 193 |
| 1976 | 166 |
| 1977 | 168 |
| 1978 | 183 |
| 1979 | 187 |
| 1980 | 233 |
| 1981 | 254 |
| 1982 | 253 |
| 1983 | 281 |
| 1984 | 289 |
| 1985 | 322 |
| 1986 | 282 |
| 1987 | 300 |
| 1988 | 318 |
| 1989 | 372 |
| 1990 | 391 |
| 1991 | 391 |
| 1992 | 438 |
| 1993 | 379 |
| 1994 | 384 |
| 1995 | 378 |
| 1996 | 555 |
| 1997 | 474 |
| 1998 | 542 |
| 1999 | 569 |
| 2000 | 652 |
| 2001 | 643 |
| 2002 | 755 |
| 2003 | 933 |
| 2004 | 810 |
| 2005 | 980 |
| 2006 | 948 |
| 2007 | 986 |
| 2008 | 1119 |
| 2009 | 1312 |
| 2010 | 1300 |
| 2011 | 1469 |
| 2012 | 1439 |
| 2013 | 1421 |
| 2014 | 1485 |
| 2015 | 1683 |
| 2016 | 1559 |
| 2017 | 1429 |
| 2018 | 1411 |
| 2019 | 1441 |
| 2020 | 1493 |
| 2021 | 1387 |
| 2022 | 1212 |
| 2023 | 1110 |
| 2024 | 341 |