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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 3 |
| 1964 | 1 |
| 1966 | 5 |
| 1967 | 5 |
| 1968 | 15 |
| 1969 | 11 |
| 1970 | 17 |
| 1971 | 17 |
| 1972 | 19 |
| 1973 | 28 |
| 1974 | 16 |
| 1975 | 14 |
| 1976 | 23 |
| 1977 | 27 |
| 1978 | 31 |
| 1979 | 26 |
| 1980 | 42 |
| 1981 | 30 |
| 1982 | 32 |
| 1983 | 42 |
| 1984 | 49 |
| 1985 | 36 |
| 1986 | 39 |
| 1987 | 48 |
| 1988 | 56 |
| 1989 | 67 |
| 1990 | 69 |
| 1991 | 76 |
| 1992 | 65 |
| 1993 | 55 |
| 1994 | 105 |
| 1995 | 111 |
| 1996 | 114 |
| 1997 | 100 |
| 1998 | 131 |
| 1999 | 140 |
| 2000 | 152 |
| 2001 | 179 |
| 2002 | 195 |
| 2003 | 218 |
| 2004 | 254 |
| 2005 | 304 |
| 2006 | 326 |
| 2007 | 371 |
| 2008 | 409 |
| 2009 | 470 |
| 2010 | 594 |
| 2011 | 669 |
| 2012 | 759 |
| 2013 | 836 |
| 2014 | 890 |
| 2015 | 927 |
| 2016 | 987 |
| 2017 | 935 |
| 2018 | 990 |
| 2019 | 1108 |
| 2020 | 1420 |
| 2021 | 1583 |
| 2022 | 1673 |
| 2023 | 438 |