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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1957 | 1 |
| 1966 | 1 |
| 1967 | 1 |
| 1968 | 2 |
| 1971 | 1 |
| 1973 | 3 |
| 1974 | 4 |
| 1975 | 4 |
| 1976 | 6 |
| 1977 | 1 |
| 1978 | 1 |
| 1979 | 5 |
| 1980 | 3 |
| 1981 | 2 |
| 1982 | 4 |
| 1983 | 5 |
| 1984 | 1 |
| 1985 | 5 |
| 1986 | 4 |
| 1987 | 1 |
| 1988 | 2 |
| 1989 | 10 |
| 1990 | 8 |
| 1991 | 13 |
| 1992 | 16 |
| 1993 | 14 |
| 1994 | 33 |
| 1995 | 33 |
| 1996 | 32 |
| 1997 | 37 |
| 1998 | 62 |
| 1999 | 65 |
| 2000 | 93 |
| 2001 | 113 |
| 2002 | 124 |
| 2003 | 142 |
| 2004 | 202 |
| 2005 | 201 |
| 2006 | 275 |
| 2007 | 347 |
| 2008 | 366 |
| 2009 | 436 |
| 2010 | 530 |
| 2011 | 644 |
| 2012 | 705 |
| 2013 | 786 |
| 2014 | 794 |
| 2015 | 918 |
| 2016 | 880 |
| 2017 | 947 |
| 2018 | 927 |
| 2019 | 1020 |
| 2020 | 1175 |
| 2021 | 1229 |
| 2022 | 1027 |
| 2023 | 1 |