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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 |
| 1969 | 2 |
| 1970 | 3 |
| 1971 | 12 |
| 1972 | 8 |
| 1973 | 10 |
| 1974 | 6 |
| 1975 | 9 |
| 1976 | 4 |
| 1977 | 5 |
| 1978 | 10 |
| 1979 | 9 |
| 1980 | 3 |
| 1981 | 13 |
| 1982 | 19 |
| 1983 | 13 |
| 1984 | 17 |
| 1985 | 21 |
| 1986 | 21 |
| 1987 | 23 |
| 1988 | 18 |
| 1989 | 24 |
| 1990 | 38 |
| 1991 | 56 |
| 1992 | 57 |
| 1993 | 70 |
| 1994 | 85 |
| 1995 | 70 |
| 1996 | 83 |
| 1997 | 53 |
| 1998 | 72 |
| 1999 | 106 |
| 2000 | 144 |
| 2001 | 178 |
| 2002 | 220 |
| 2003 | 235 |
| 2004 | 310 |
| 2005 | 426 |
| 2006 | 571 |
| 2007 | 622 |
| 2008 | 697 |
| 2009 | 808 |
| 2010 | 890 |
| 2011 | 1020 |
| 2012 | 1128 |
| 2013 | 1143 |
| 2014 | 1139 |
| 2015 | 1038 |
| 2016 | 828 |
| 2017 | 689 |
| 2018 | 650 |
| 2019 | 761 |
| 2020 | 618 |
| 2021 | 397 |
| 2022 | 349 |
| 2023 | 236 |
| 2024 | 106 |