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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1957 | 1 |
| 1964 | 1 |
| 1965 | 5 |
| 1966 | 10 |
| 1967 | 15 |
| 1968 | 31 |
| 1969 | 69 |
| 1970 | 139 |
| 1971 | 182 |
| 1972 | 185 |
| 1973 | 174 |
| 1974 | 169 |
| 1975 | 124 |
| 1976 | 88 |
| 1977 | 79 |
| 1978 | 85 |
| 1979 | 111 |
| 1980 | 64 |
| 1981 | 75 |
| 1982 | 84 |
| 1983 | 107 |
| 1984 | 121 |
| 1985 | 109 |
| 1986 | 134 |
| 1987 | 153 |
| 1988 | 145 |
| 1989 | 177 |
| 1990 | 170 |
| 1991 | 156 |
| 1992 | 164 |
| 1993 | 164 |
| 1994 | 146 |
| 1995 | 154 |
| 1996 | 182 |
| 1997 | 167 |
| 1998 | 184 |
| 1999 | 143 |
| 2000 | 225 |
| 2001 | 157 |
| 2002 | 176 |
| 2003 | 186 |
| 2004 | 202 |
| 2005 | 204 |
| 2006 | 225 |
| 2007 | 219 |
| 2008 | 199 |
| 2009 | 231 |
| 2010 | 251 |
| 2011 | 255 |
| 2012 | 292 |
| 2013 | 264 |
| 2014 | 277 |
| 2015 | 273 |
| 2016 | 265 |
| 2017 | 243 |
| 2018 | 206 |
| 2019 | 239 |
| 2020 | 206 |
| 2021 | 128 |
| 2022 | 10 |
| 2023 | 3 |
| 2024 | 35 |