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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1968 | 1 |
| 1969 | 3 |
| 1970 | 1 |
| 1971 | 2 |
| 1972 | 2 |
| 1974 | 1 |
| 1975 | 1 |
| 1976 | 2 |
| 1977 | 3 |
| 1978 | 4 |
| 1979 | 3 |
| 1980 | 3 |
| 1981 | 2 |
| 1982 | 5 |
| 1983 | 6 |
| 1984 | 2 |
| 1985 | 8 |
| 1986 | 1 |
| 1987 | 13 |
| 1988 | 29 |
| 1989 | 90 |
| 1990 | 196 |
| 1991 | 319 |
| 1992 | 515 |
| 1993 | 735 |
| 1994 | 1112 |
| 1995 | 1399 |
| 1996 | 1501 |
| 1997 | 1733 |
| 1998 | 1701 |
| 1999 | 1768 |
| 2000 | 1781 |
| 2001 | 1707 |
| 2002 | 1780 |
| 2003 | 1777 |
| 2004 | 1665 |
| 2005 | 1775 |
| 2006 | 1727 |
| 2007 | 1683 |
| 2008 | 1586 |
| 2009 | 1452 |
| 2010 | 1411 |
| 2011 | 1429 |
| 2012 | 1329 |
| 2013 | 1291 |
| 2014 | 1165 |
| 2015 | 1168 |
| 2016 | 1009 |
| 2017 | 881 |
| 2018 | 817 |
| 2019 | 791 |
| 2020 | 648 |
| 2021 | 463 |
| 2022 | 192 |
| 2023 | 144 |
| 2024 | 76 |