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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1956 | 8 |
| 1957 | 13 |
| 1959 | 6 |
| 1960 | 16 |
| 1961 | 13 |
| 1962 | 21 |
| 1965 | 1 |
| 1966 | 10 |
| 1967 | 17 |
| 1968 | 37 |
| 1969 | 25 |
| 1970 | 33 |
| 1971 | 41 |
| 1972 | 45 |
| 1973 | 37 |
| 1974 | 36 |
| 1975 | 51 |
| 1976 | 50 |
| 1977 | 36 |
| 1978 | 54 |
| 1979 | 68 |
| 1980 | 57 |
| 1981 | 56 |
| 1982 | 59 |
| 1983 | 78 |
| 1984 | 69 |
| 1985 | 73 |
| 1986 | 99 |
| 1987 | 130 |
| 1988 | 91 |
| 1989 | 91 |
| 1990 | 90 |
| 1991 | 111 |
| 1992 | 95 |
| 1993 | 111 |
| 1994 | 76 |
| 1995 | 75 |
| 1996 | 94 |
| 1997 | 83 |
| 1998 | 82 |
| 1999 | 114 |
| 2000 | 125 |
| 2001 | 143 |
| 2002 | 158 |
| 2003 | 137 |
| 2004 | 170 |
| 2005 | 166 |
| 2006 | 219 |
| 2007 | 213 |
| 2008 | 257 |
| 2009 | 219 |
| 2010 | 229 |
| 2011 | 194 |
| 2012 | 186 |
| 2013 | 142 |
| 2014 | 192 |
| 2015 | 159 |
| 2016 | 153 |
| 2017 | 142 |
| 2018 | 73 |
| 2019 | 76 |
| 2020 | 55 |
| 2021 | 48 |
| 2022 | 57 |
| 2023 | 42 |
| 2024 | 10 |