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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1971 | 1 |
| 1974 | 2 |
| 1975 | 2 |
| 1977 | 9 |
| 1978 | 44 |
| 1979 | 81 |
| 1980 | 80 |
| 1981 | 95 |
| 1982 | 119 |
| 1983 | 111 |
| 1984 | 134 |
| 1985 | 108 |
| 1986 | 136 |
| 1987 | 128 |
| 1988 | 166 |
| 1989 | 200 |
| 1990 | 245 |
| 1991 | 291 |
| 1992 | 361 |
| 1993 | 392 |
| 1994 | 477 |
| 1995 | 545 |
| 1996 | 536 |
| 1997 | 574 |
| 1998 | 636 |
| 1999 | 661 |
| 2000 | 789 |
| 2001 | 921 |
| 2002 | 916 |
| 2003 | 890 |
| 2004 | 1135 |
| 2005 | 1199 |
| 2006 | 1211 |
| 2007 | 1262 |
| 2008 | 1406 |
| 2009 | 1503 |
| 2010 | 1704 |
| 2011 | 1629 |
| 2012 | 1756 |
| 2013 | 1812 |
| 2014 | 2013 |
| 2015 | 1689 |
| 2016 | 1988 |
| 2017 | 1295 |
| 2018 | 1112 |
| 2019 | 1090 |
| 2020 | 1038 |
| 2021 | 1041 |
| 2022 | 1143 |
| 2023 | 1020 |
| 2024 | 1150 |
| 2025 | 717 |