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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 1 |
| 1966 | 3 |
| 1967 | 14 |
| 1968 | 21 |
| 1969 | 31 |
| 1970 | 24 |
| 1971 | 24 |
| 1972 | 52 |
| 1973 | 43 |
| 1974 | 56 |
| 1975 | 62 |
| 1976 | 57 |
| 1977 | 55 |
| 1978 | 50 |
| 1979 | 47 |
| 1980 | 40 |
| 1981 | 46 |
| 1982 | 47 |
| 1983 | 40 |
| 1984 | 53 |
| 1985 | 63 |
| 1986 | 55 |
| 1987 | 60 |
| 1988 | 58 |
| 1989 | 41 |
| 1990 | 56 |
| 1991 | 61 |
| 1992 | 45 |
| 1993 | 39 |
| 1994 | 61 |
| 1995 | 51 |
| 1996 | 43 |
| 1997 | 56 |
| 1998 | 61 |
| 1999 | 63 |
| 2000 | 121 |
| 2001 | 131 |
| 2002 | 153 |
| 2003 | 139 |
| 2004 | 155 |
| 2005 | 170 |
| 2006 | 205 |
| 2007 | 239 |
| 2008 | 241 |
| 2009 | 255 |
| 2010 | 265 |
| 2011 | 260 |
| 2012 | 270 |
| 2013 | 317 |
| 2014 | 336 |
| 2015 | 345 |
| 2016 | 341 |
| 2017 | 285 |
| 2018 | 255 |
| 2019 | 266 |
| 2020 | 232 |
| 2021 | 218 |
| 2022 | 187 |
| 2023 | 161 |
| 2024 | 41 |