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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1956 | 2 |
| 1966 | 1 |
| 1968 | 2 |
| 1969 | 4 |
| 1970 | 3 |
| 1971 | 3 |
| 1972 | 11 |
| 1973 | 12 |
| 1974 | 9 |
| 1975 | 12 |
| 1976 | 12 |
| 1977 | 7 |
| 1978 | 11 |
| 1979 | 11 |
| 1980 | 8 |
| 1981 | 14 |
| 1982 | 13 |
| 1983 | 8 |
| 1984 | 15 |
| 1985 | 12 |
| 1986 | 8 |
| 1987 | 9 |
| 1988 | 11 |
| 1989 | 14 |
| 1990 | 33 |
| 1991 | 30 |
| 1992 | 69 |
| 1993 | 138 |
| 1994 | 173 |
| 1995 | 376 |
| 1996 | 644 |
| 1997 | 776 |
| 1998 | 878 |
| 1999 | 906 |
| 2000 | 924 |
| 2001 | 984 |
| 2002 | 834 |
| 2003 | 861 |
| 2004 | 835 |
| 2005 | 948 |
| 2006 | 839 |
| 2007 | 875 |
| 2008 | 899 |
| 2009 | 763 |
| 2010 | 630 |
| 2011 | 630 |
| 2012 | 661 |
| 2013 | 625 |
| 2014 | 557 |
| 2015 | 579 |
| 2016 | 483 |
| 2017 | 410 |
| 2018 | 386 |
| 2019 | 293 |
| 2020 | 254 |
| 2021 | 196 |
| 2022 | 59 |
| 2023 | 32 |
| 2024 | 13 |