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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1968 | 1 |
| 1972 | 1 |
| 1973 | 1 |
| 1974 | 4 |
| 1975 | 24 |
| 1976 | 32 |
| 1977 | 28 |
| 1978 | 22 |
| 1979 | 88 |
| 1980 | 46 |
| 1981 | 48 |
| 1982 | 38 |
| 1983 | 54 |
| 1984 | 51 |
| 1985 | 78 |
| 1986 | 92 |
| 1987 | 104 |
| 1988 | 168 |
| 1989 | 169 |
| 1990 | 148 |
| 1991 | 284 |
| 1992 | 288 |
| 1993 | 285 |
| 1994 | 394 |
| 1995 | 260 |
| 1996 | 233 |
| 1997 | 338 |
| 1998 | 287 |
| 1999 | 300 |
| 2000 | 291 |
| 2001 | 369 |
| 2002 | 424 |
| 2003 | 468 |
| 2004 | 511 |
| 2005 | 600 |
| 2006 | 579 |
| 2007 | 591 |
| 2008 | 621 |
| 2009 | 745 |
| 2010 | 720 |
| 2011 | 720 |
| 2012 | 767 |
| 2013 | 863 |
| 2014 | 954 |
| 2015 | 862 |
| 2016 | 933 |
| 2017 | 1048 |
| 2018 | 1099 |
| 2019 | 887 |
| 2020 | 719 |
| 2021 | 534 |
| 2022 | 341 |
| 2023 | 293 |
| 2024 | 861 |
| 2025 | 497 |