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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1973 | 1 |
| 1975 | 11 |
| 1976 | 18 |
| 1977 | 11 |
| 1978 | 7 |
| 1979 | 20 |
| 1980 | 15 |
| 1981 | 11 |
| 1982 | 14 |
| 1983 | 27 |
| 1984 | 26 |
| 1985 | 42 |
| 1986 | 24 |
| 1987 | 22 |
| 1988 | 18 |
| 1989 | 24 |
| 1990 | 36 |
| 1991 | 34 |
| 1992 | 41 |
| 1993 | 52 |
| 1994 | 58 |
| 1995 | 41 |
| 1996 | 45 |
| 1997 | 51 |
| 1998 | 60 |
| 1999 | 89 |
| 2000 | 77 |
| 2001 | 111 |
| 2002 | 104 |
| 2003 | 162 |
| 2004 | 135 |
| 2005 | 160 |
| 2006 | 168 |
| 2007 | 213 |
| 2008 | 193 |
| 2009 | 198 |
| 2010 | 290 |
| 2011 | 346 |
| 2012 | 357 |
| 2013 | 281 |
| 2014 | 273 |
| 2015 | 271 |
| 2016 | 328 |
| 2017 | 365 |
| 2018 | 336 |
| 2019 | 370 |
| 2020 | 294 |
| 2021 | 232 |
| 2022 | 33 |
| 2023 | 6 |
| 2024 | 1 |