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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 1 |
| 1960 | 1 |
| 1962 | 1 |
| 1965 | 9 |
| 1966 | 22 |
| 1967 | 33 |
| 1968 | 34 |
| 1969 | 37 |
| 1970 | 41 |
| 1971 | 43 |
| 1972 | 43 |
| 1973 | 31 |
| 1974 | 57 |
| 1975 | 79 |
| 1976 | 43 |
| 1977 | 28 |
| 1978 | 44 |
| 1979 | 55 |
| 1980 | 76 |
| 1981 | 52 |
| 1982 | 90 |
| 1983 | 103 |
| 1984 | 130 |
| 1985 | 145 |
| 1986 | 151 |
| 1987 | 150 |
| 1988 | 188 |
| 1989 | 255 |
| 1990 | 234 |
| 1991 | 200 |
| 1992 | 155 |
| 1993 | 183 |
| 1994 | 186 |
| 1995 | 172 |
| 1996 | 207 |
| 1997 | 250 |
| 1998 | 275 |
| 1999 | 264 |
| 2000 | 267 |
| 2001 | 305 |
| 2002 | 342 |
| 2003 | 307 |
| 2004 | 372 |
| 2005 | 430 |
| 2006 | 456 |
| 2007 | 528 |
| 2008 | 533 |
| 2009 | 565 |
| 2010 | 601 |
| 2011 | 652 |
| 2012 | 642 |
| 2013 | 654 |
| 2014 | 524 |
| 2015 | 550 |
| 2016 | 533 |
| 2017 | 443 |
| 2018 | 425 |
| 2019 | 391 |
| 2020 | 322 |
| 2021 | 265 |
| 2022 | 175 |
| 2023 | 105 |
| 2024 | 112 |