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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 1 |
| 1975 | 4 |
| 1976 | 9 |
| 1977 | 9 |
| 1978 | 9 |
| 1979 | 12 |
| 1980 | 11 |
| 1981 | 22 |
| 1982 | 19 |
| 1983 | 42 |
| 1984 | 28 |
| 1985 | 38 |
| 1986 | 61 |
| 1987 | 50 |
| 1988 | 82 |
| 1989 | 163 |
| 1990 | 205 |
| 1991 | 288 |
| 1992 | 408 |
| 1993 | 446 |
| 1994 | 524 |
| 1995 | 485 |
| 1996 | 569 |
| 1997 | 566 |
| 1998 | 651 |
| 1999 | 706 |
| 2000 | 806 |
| 2001 | 900 |
| 2002 | 934 |
| 2003 | 958 |
| 2004 | 1052 |
| 2005 | 1136 |
| 2006 | 1320 |
| 2007 | 1199 |
| 2008 | 1263 |
| 2009 | 1338 |
| 2010 | 1451 |
| 2011 | 1464 |
| 2012 | 1572 |
| 2013 | 1474 |
| 2014 | 1339 |
| 2015 | 1302 |
| 2016 | 1221 |
| 2017 | 1269 |
| 2018 | 1112 |
| 2019 | 1097 |
| 2020 | 1110 |
| 2021 | 973 |
| 2022 | 861 |
| 2023 | 776 |
| 2024 | 211 |