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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1964 | 1 |
| 1965 | 7 |
| 1966 | 15 |
| 1967 | 18 |
| 1968 | 25 |
| 1969 | 22 |
| 1970 | 27 |
| 1971 | 22 |
| 1972 | 29 |
| 1973 | 26 |
| 1974 | 30 |
| 1975 | 30 |
| 1976 | 36 |
| 1977 | 30 |
| 1978 | 27 |
| 1979 | 17 |
| 1980 | 26 |
| 1981 | 36 |
| 1982 | 50 |
| 1983 | 46 |
| 1984 | 60 |
| 1985 | 68 |
| 1986 | 79 |
| 1987 | 53 |
| 1988 | 55 |
| 1989 | 87 |
| 1990 | 75 |
| 1991 | 55 |
| 1992 | 67 |
| 1993 | 71 |
| 1994 | 69 |
| 1995 | 66 |
| 1996 | 75 |
| 1997 | 86 |
| 1998 | 69 |
| 1999 | 76 |
| 2000 | 97 |
| 2001 | 105 |
| 2002 | 97 |
| 2003 | 129 |
| 2004 | 113 |
| 2005 | 122 |
| 2006 | 136 |
| 2007 | 146 |
| 2008 | 170 |
| 2009 | 174 |
| 2010 | 209 |
| 2011 | 242 |
| 2012 | 184 |
| 2013 | 179 |
| 2014 | 214 |
| 2015 | 195 |
| 2016 | 177 |
| 2017 | 206 |
| 2018 | 190 |
| 2019 | 177 |
| 2020 | 154 |
| 2021 | 151 |
| 2022 | 109 |
| 2023 | 97 |
| 2024 | 30 |