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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1968 | 36 |
| 1969 | 45 |
| 1970 | 53 |
| 1971 | 59 |
| 1972 | 63 |
| 1973 | 70 |
| 1974 | 68 |
| 1975 | 55 |
| 1976 | 103 |
| 1977 | 94 |
| 1978 | 52 |
| 1979 | 103 |
| 1980 | 116 |
| 1981 | 96 |
| 1982 | 104 |
| 1983 | 105 |
| 1984 | 97 |
| 1985 | 90 |
| 1986 | 102 |
| 1987 | 111 |
| 1988 | 107 |
| 1989 | 124 |
| 1990 | 141 |
| 1991 | 118 |
| 1992 | 136 |
| 1993 | 135 |
| 1994 | 125 |
| 1995 | 166 |
| 1996 | 208 |
| 1997 | 175 |
| 1998 | 159 |
| 1999 | 175 |
| 2000 | 223 |
| 2001 | 199 |
| 2002 | 197 |
| 2003 | 218 |
| 2004 | 283 |
| 2005 | 527 |
| 2006 | 616 |
| 2007 | 579 |
| 2008 | 521 |
| 2009 | 580 |
| 2010 | 615 |
| 2011 | 555 |
| 2012 | 574 |
| 2013 | 578 |
| 2014 | 657 |
| 2015 | 653 |
| 2016 | 683 |
| 2017 | 542 |
| 2018 | 591 |
| 2019 | 616 |
| 2020 | 595 |
| 2021 | 631 |
| 2022 | 404 |
| 2023 | 390 |
| 2024 | 173 |