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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 8 |
| 1965 | 27 |
| 1966 | 64 |
| 1967 | 95 |
| 1968 | 123 |
| 1969 | 161 |
| 1970 | 192 |
| 1971 | 208 |
| 1972 | 176 |
| 1973 | 271 |
| 1974 | 298 |
| 1975 | 289 |
| 1976 | 255 |
| 1977 | 262 |
| 1978 | 264 |
| 1979 | 289 |
| 1980 | 266 |
| 1981 | 314 |
| 1982 | 336 |
| 1983 | 382 |
| 1984 | 363 |
| 1985 | 316 |
| 1986 | 329 |
| 1987 | 317 |
| 1988 | 334 |
| 1989 | 334 |
| 1990 | 345 |
| 1991 | 315 |
| 1992 | 300 |
| 1993 | 307 |
| 1994 | 249 |
| 1995 | 239 |
| 1996 | 225 |
| 1997 | 197 |
| 1998 | 234 |
| 1999 | 214 |
| 2000 | 199 |
| 2001 | 186 |
| 2002 | 170 |
| 2003 | 159 |
| 2004 | 163 |
| 2005 | 179 |
| 2006 | 188 |
| 2007 | 160 |
| 2008 | 178 |
| 2009 | 163 |
| 2010 | 162 |
| 2011 | 146 |
| 2012 | 158 |
| 2013 | 149 |
| 2014 | 149 |
| 2015 | 123 |
| 2016 | 113 |
| 2017 | 107 |
| 2018 | 102 |
| 2019 | 92 |
| 2020 | 87 |
| 2021 | 88 |
| 2022 | 61 |
| 2023 | 62 |
| 2024 | 16 |