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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1972 | 1 |
| 1973 | 1 |
| 1974 | 1 |
| 1976 | 3 |
| 1977 | 3 |
| 1979 | 2 |
| 1980 | 7 |
| 1981 | 5 |
| 1982 | 4 |
| 1983 | 4 |
| 1984 | 8 |
| 1985 | 8 |
| 1986 | 10 |
| 1987 | 5 |
| 1988 | 11 |
| 1989 | 11 |
| 1990 | 27 |
| 1991 | 21 |
| 1992 | 32 |
| 1993 | 27 |
| 1994 | 36 |
| 1995 | 37 |
| 1996 | 47 |
| 1997 | 58 |
| 1998 | 80 |
| 1999 | 97 |
| 2000 | 123 |
| 2001 | 121 |
| 2002 | 196 |
| 2003 | 323 |
| 2004 | 319 |
| 2005 | 322 |
| 2006 | 387 |
| 2007 | 481 |
| 2008 | 546 |
| 2009 | 656 |
| 2010 | 691 |
| 2011 | 789 |
| 2012 | 995 |
| 2013 | 1169 |
| 2014 | 1179 |
| 2015 | 1258 |
| 2016 | 1442 |
| 2017 | 1390 |
| 2018 | 1426 |
| 2019 | 1645 |
| 2020 | 1660 |
| 2021 | 1238 |
| 2022 | 1227 |
| 2023 | 1324 |
| 2024 | 543 |