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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 1 |
| 1965 | 27 |
| 1966 | 28 |
| 1967 | 30 |
| 1968 | 31 |
| 1969 | 25 |
| 1970 | 15 |
| 1971 | 16 |
| 1972 | 13 |
| 1973 | 2 |
| 1974 | 4 |
| 1975 | 5 |
| 1976 | 8 |
| 1977 | 4 |
| 1978 | 14 |
| 1979 | 33 |
| 1980 | 18 |
| 1981 | 32 |
| 1982 | 47 |
| 1983 | 34 |
| 1984 | 35 |
| 1985 | 41 |
| 1986 | 26 |
| 1987 | 33 |
| 1988 | 33 |
| 1989 | 55 |
| 1990 | 64 |
| 1991 | 80 |
| 1992 | 122 |
| 1993 | 86 |
| 1994 | 67 |
| 1995 | 113 |
| 1996 | 209 |
| 1997 | 184 |
| 1998 | 195 |
| 1999 | 195 |
| 2000 | 160 |
| 2001 | 136 |
| 2002 | 168 |
| 2003 | 160 |
| 2004 | 152 |
| 2005 | 164 |
| 2006 | 157 |
| 2007 | 164 |
| 2008 | 163 |
| 2009 | 164 |
| 2010 | 185 |
| 2011 | 175 |
| 2012 | 205 |
| 2013 | 212 |
| 2014 | 221 |
| 2015 | 228 |
| 2016 | 202 |
| 2017 | 184 |
| 2018 | 182 |
| 2019 | 161 |
| 2020 | 209 |
| 2021 | 191 |
| 2022 | 186 |
| 2023 | 185 |
| 2024 | 92 |