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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1972 | 2 |
| 1973 | 5 |
| 1975 | 5 |
| 1976 | 3 |
| 1977 | 1 |
| 1979 | 4 |
| 1980 | 10 |
| 1981 | 8 |
| 1982 | 7 |
| 1983 | 14 |
| 1984 | 6 |
| 1985 | 8 |
| 1986 | 8 |
| 1987 | 16 |
| 1988 | 12 |
| 1989 | 16 |
| 1990 | 12 |
| 1991 | 16 |
| 1992 | 17 |
| 1993 | 26 |
| 1994 | 28 |
| 1995 | 28 |
| 1996 | 32 |
| 1997 | 44 |
| 1998 | 62 |
| 1999 | 66 |
| 2000 | 78 |
| 2001 | 115 |
| 2002 | 121 |
| 2003 | 153 |
| 2004 | 207 |
| 2005 | 209 |
| 2006 | 283 |
| 2007 | 288 |
| 2008 | 373 |
| 2009 | 442 |
| 2010 | 591 |
| 2011 | 672 |
| 2012 | 786 |
| 2013 | 882 |
| 2014 | 968 |
| 2015 | 1050 |
| 2016 | 1055 |
| 2017 | 1046 |
| 2018 | 1181 |
| 2019 | 1117 |
| 2020 | 1308 |
| 2021 | 1449 |
| 2022 | 1423 |
| 2023 | 1345 |
| 2024 | 489 |