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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 23 |
| 1965 | 53 |
| 1966 | 40 |
| 1967 | 76 |
| 1968 | 79 |
| 1969 | 74 |
| 1970 | 111 |
| 1971 | 128 |
| 1972 | 115 |
| 1973 | 122 |
| 1974 | 92 |
| 1975 | 139 |
| 1976 | 73 |
| 1977 | 135 |
| 1978 | 36 |
| 1979 | 88 |
| 1980 | 31 |
| 1981 | 43 |
| 1982 | 72 |
| 1983 | 66 |
| 1984 | 74 |
| 1985 | 83 |
| 1986 | 91 |
| 1987 | 96 |
| 1988 | 87 |
| 1989 | 87 |
| 1990 | 131 |
| 1991 | 147 |
| 1992 | 175 |
| 1993 | 163 |
| 1994 | 138 |
| 1995 | 132 |
| 1996 | 158 |
| 1997 | 113 |
| 1998 | 169 |
| 1999 | 150 |
| 2000 | 162 |
| 2001 | 139 |
| 2002 | 149 |
| 2003 | 154 |
| 2004 | 165 |
| 2005 | 159 |
| 2006 | 181 |
| 2007 | 158 |
| 2008 | 159 |
| 2009 | 204 |
| 2010 | 160 |
| 2011 | 169 |
| 2012 | 190 |
| 2013 | 169 |
| 2014 | 178 |
| 2015 | 206 |
| 2016 | 241 |
| 2017 | 255 |
| 2018 | 227 |
| 2019 | 233 |
| 2020 | 261 |
| 2021 | 302 |
| 2022 | 244 |
| 2023 | 169 |
| 2024 | 91 |