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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 1 |
| 1968 | 1 |
| 1970 | 1 |
| 1971 | 13 |
| 1972 | 25 |
| 1973 | 33 |
| 1974 | 43 |
| 1975 | 98 |
| 1976 | 100 |
| 1977 | 103 |
| 1978 | 129 |
| 1979 | 156 |
| 1980 | 206 |
| 1981 | 212 |
| 1982 | 257 |
| 1983 | 240 |
| 1984 | 275 |
| 1985 | 309 |
| 1986 | 338 |
| 1987 | 291 |
| 1988 | 284 |
| 1989 | 362 |
| 1990 | 451 |
| 1991 | 458 |
| 1992 | 463 |
| 1993 | 532 |
| 1994 | 540 |
| 1995 | 601 |
| 1996 | 635 |
| 1997 | 764 |
| 1998 | 844 |
| 1999 | 957 |
| 2000 | 1103 |
| 2001 | 1174 |
| 2002 | 1238 |
| 2003 | 1313 |
| 2004 | 1493 |
| 2005 | 1542 |
| 2006 | 1582 |
| 2007 | 1749 |
| 2008 | 1654 |
| 2009 | 1810 |
| 2010 | 1807 |
| 2011 | 1825 |
| 2012 | 1854 |
| 2013 | 1884 |
| 2014 | 1701 |
| 2015 | 1615 |
| 2016 | 1456 |
| 2017 | 1430 |
| 2018 | 1301 |
| 2019 | 1234 |
| 2020 | 1038 |
| 2021 | 888 |
| 2022 | 968 |
| 2023 | 763 |
| 2024 | 233 |