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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 1 |
| 1964 | 2 |
| 1968 | 4 |
| 1969 | 1 |
| 1971 | 5 |
| 1972 | 2 |
| 1973 | 1 |
| 1974 | 2 |
| 1975 | 8 |
| 1976 | 4 |
| 1977 | 7 |
| 1978 | 10 |
| 1979 | 16 |
| 1980 | 9 |
| 1981 | 12 |
| 1982 | 17 |
| 1983 | 15 |
| 1984 | 19 |
| 1985 | 18 |
| 1986 | 24 |
| 1987 | 32 |
| 1988 | 29 |
| 1989 | 55 |
| 1990 | 71 |
| 1991 | 71 |
| 1992 | 94 |
| 1993 | 125 |
| 1994 | 133 |
| 1995 | 108 |
| 1996 | 125 |
| 1997 | 124 |
| 1998 | 186 |
| 1999 | 131 |
| 2000 | 137 |
| 2001 | 176 |
| 2002 | 199 |
| 2003 | 199 |
| 2004 | 287 |
| 2005 | 258 |
| 2006 | 250 |
| 2007 | 310 |
| 2008 | 315 |
| 2009 | 347 |
| 2010 | 383 |
| 2011 | 481 |
| 2012 | 587 |
| 2013 | 645 |
| 2014 | 616 |
| 2015 | 630 |
| 2016 | 703 |
| 2017 | 729 |
| 2018 | 750 |
| 2019 | 786 |
| 2020 | 703 |
| 2021 | 545 |
| 2022 | 240 |
| 2023 | 165 |
| 2024 | 48 |