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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 1 |
| 1970 | 1 |
| 1974 | 2 |
| 1975 | 9 |
| 1976 | 10 |
| 1977 | 11 |
| 1978 | 14 |
| 1979 | 7 |
| 1980 | 10 |
| 1981 | 10 |
| 1982 | 13 |
| 1983 | 9 |
| 1984 | 18 |
| 1985 | 30 |
| 1986 | 51 |
| 1987 | 58 |
| 1988 | 51 |
| 1989 | 66 |
| 1990 | 55 |
| 1991 | 34 |
| 1992 | 39 |
| 1993 | 33 |
| 1994 | 38 |
| 1995 | 40 |
| 1996 | 43 |
| 1997 | 76 |
| 1998 | 63 |
| 1999 | 66 |
| 2000 | 96 |
| 2001 | 112 |
| 2002 | 105 |
| 2003 | 115 |
| 2004 | 135 |
| 2005 | 157 |
| 2006 | 137 |
| 2007 | 130 |
| 2008 | 174 |
| 2009 | 168 |
| 2010 | 186 |
| 2011 | 266 |
| 2012 | 285 |
| 2013 | 319 |
| 2014 | 346 |
| 2015 | 370 |
| 2016 | 382 |
| 2017 | 365 |
| 2018 | 401 |
| 2019 | 374 |
| 2020 | 318 |
| 2021 | 217 |
| 2022 | 170 |
| 2023 | 130 |
| 2024 | 97 |