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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 2 |
| 1968 | 3 |
| 1969 | 1 |
| 1971 | 1 |
| 1973 | 2 |
| 1974 | 3 |
| 1975 | 11 |
| 1976 | 9 |
| 1977 | 10 |
| 1978 | 18 |
| 1979 | 16 |
| 1980 | 16 |
| 1981 | 21 |
| 1982 | 21 |
| 1983 | 28 |
| 1984 | 48 |
| 1985 | 49 |
| 1986 | 47 |
| 1987 | 62 |
| 1988 | 75 |
| 1989 | 76 |
| 1990 | 68 |
| 1991 | 69 |
| 1992 | 78 |
| 1993 | 94 |
| 1994 | 66 |
| 1995 | 79 |
| 1996 | 74 |
| 1997 | 104 |
| 1998 | 179 |
| 1999 | 209 |
| 2000 | 212 |
| 2001 | 251 |
| 2002 | 277 |
| 2003 | 310 |
| 2004 | 352 |
| 2005 | 454 |
| 2006 | 499 |
| 2007 | 597 |
| 2008 | 632 |
| 2009 | 685 |
| 2010 | 793 |
| 2011 | 810 |
| 2012 | 782 |
| 2013 | 848 |
| 2014 | 875 |
| 2015 | 878 |
| 2016 | 881 |
| 2017 | 803 |
| 2018 | 976 |
| 2019 | 973 |
| 2020 | 917 |
| 2021 | 794 |
| 2022 | 267 |
| 2023 | 210 |
| 2024 | 61 |