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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 3 |
| 1961 | 9 |
| 1962 | 11 |
| 1963 | 26 |
| 1964 | 72 |
| 1965 | 77 |
| 1966 | 103 |
| 1967 | 139 |
| 1968 | 151 |
| 1969 | 179 |
| 1970 | 108 |
| 1971 | 125 |
| 1972 | 128 |
| 1973 | 107 |
| 1974 | 115 |
| 1975 | 115 |
| 1976 | 127 |
| 1977 | 109 |
| 1978 | 90 |
| 1979 | 91 |
| 1980 | 98 |
| 1981 | 83 |
| 1982 | 86 |
| 1983 | 112 |
| 1984 | 108 |
| 1985 | 104 |
| 1986 | 144 |
| 1987 | 167 |
| 1988 | 194 |
| 1989 | 155 |
| 1990 | 114 |
| 1991 | 127 |
| 1992 | 168 |
| 1993 | 181 |
| 1994 | 188 |
| 1995 | 178 |
| 1996 | 192 |
| 1997 | 154 |
| 1998 | 153 |
| 1999 | 148 |
| 2000 | 115 |
| 2001 | 134 |
| 2002 | 106 |
| 2003 | 107 |
| 2004 | 114 |
| 2005 | 113 |
| 2006 | 143 |
| 2007 | 138 |
| 2008 | 157 |
| 2009 | 114 |
| 2010 | 97 |
| 2011 | 83 |
| 2012 | 67 |
| 2013 | 72 |
| 2014 | 49 |
| 2015 | 41 |
| 2016 | 39 |
| 2017 | 30 |
| 2018 | 23 |
| 2019 | 25 |
| 2020 | 24 |
| 2021 | 11 |
| 2022 | 18 |
| 2023 | 8 |
| 2024 | 7 |