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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 1 |
| 1965 | 17 |
| 1966 | 34 |
| 1967 | 44 |
| 1968 | 54 |
| 1969 | 48 |
| 1970 | 41 |
| 1971 | 53 |
| 1972 | 45 |
| 1973 | 62 |
| 1974 | 67 |
| 1975 | 73 |
| 1976 | 73 |
| 1977 | 70 |
| 1978 | 93 |
| 1979 | 81 |
| 1980 | 85 |
| 1981 | 108 |
| 1982 | 110 |
| 1983 | 145 |
| 1984 | 140 |
| 1985 | 179 |
| 1986 | 159 |
| 1987 | 206 |
| 1988 | 229 |
| 1989 | 266 |
| 1990 | 259 |
| 1991 | 278 |
| 1992 | 300 |
| 1993 | 252 |
| 1994 | 319 |
| 1995 | 301 |
| 1996 | 273 |
| 1997 | 277 |
| 1998 | 332 |
| 1999 | 242 |
| 2000 | 261 |
| 2001 | 247 |
| 2002 | 233 |
| 2003 | 272 |
| 2004 | 307 |
| 2005 | 298 |
| 2006 | 302 |
| 2007 | 347 |
| 2008 | 312 |
| 2009 | 347 |
| 2010 | 381 |
| 2011 | 319 |
| 2012 | 328 |
| 2013 | 342 |
| 2014 | 380 |
| 2015 | 373 |
| 2016 | 364 |
| 2017 | 350 |
| 2018 | 336 |
| 2019 | 416 |
| 2020 | 322 |
| 2021 | 234 |
| 2022 | 210 |
| 2023 | 168 |
| 2024 | 4 |