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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1955 | 1 |
| 1956 | 3 |
| 1961 | 1 |
| 1965 | 2 |
| 1966 | 8 |
| 1967 | 17 |
| 1968 | 12 |
| 1969 | 14 |
| 1970 | 19 |
| 1971 | 10 |
| 1972 | 15 |
| 1973 | 13 |
| 1974 | 17 |
| 1975 | 17 |
| 1976 | 11 |
| 1977 | 5 |
| 1978 | 13 |
| 1979 | 10 |
| 1980 | 10 |
| 1981 | 11 |
| 1982 | 28 |
| 1983 | 48 |
| 1984 | 44 |
| 1985 | 52 |
| 1986 | 59 |
| 1987 | 77 |
| 1988 | 68 |
| 1989 | 68 |
| 1990 | 53 |
| 1991 | 53 |
| 1992 | 102 |
| 1993 | 124 |
| 1994 | 173 |
| 1995 | 167 |
| 1996 | 209 |
| 1997 | 202 |
| 1998 | 240 |
| 1999 | 294 |
| 2000 | 311 |
| 2001 | 362 |
| 2002 | 415 |
| 2003 | 477 |
| 2004 | 549 |
| 2005 | 604 |
| 2006 | 733 |
| 2007 | 794 |
| 2008 | 784 |
| 2009 | 826 |
| 2010 | 821 |
| 2011 | 790 |
| 2012 | 905 |
| 2013 | 887 |
| 2014 | 886 |
| 2015 | 925 |
| 2016 | 907 |
| 2017 | 864 |
| 2018 | 707 |
| 2019 | 807 |
| 2020 | 799 |
| 2021 | 660 |
| 2022 | 425 |
| 2023 | 211 |
| 2024 | 55 |