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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 1 |
| 1965 | 1 |
| 1966 | 17 |
| 1967 | 45 |
| 1968 | 87 |
| 1969 | 107 |
| 1970 | 138 |
| 1971 | 151 |
| 1972 | 212 |
| 1973 | 209 |
| 1974 | 201 |
| 1975 | 171 |
| 1976 | 177 |
| 1977 | 164 |
| 1978 | 184 |
| 1979 | 176 |
| 1980 | 179 |
| 1981 | 154 |
| 1982 | 196 |
| 1983 | 171 |
| 1984 | 283 |
| 1985 | 452 |
| 1986 | 528 |
| 1987 | 536 |
| 1988 | 378 |
| 1989 | 576 |
| 1990 | 547 |
| 1991 | 458 |
| 1992 | 499 |
| 1993 | 519 |
| 1994 | 446 |
| 1995 | 465 |
| 1996 | 369 |
| 1997 | 351 |
| 1998 | 323 |
| 1999 | 285 |
| 2000 | 264 |
| 2001 | 284 |
| 2002 | 317 |
| 2003 | 416 |
| 2004 | 372 |
| 2005 | 328 |
| 2006 | 235 |
| 2007 | 202 |
| 2008 | 183 |
| 2009 | 110 |
| 2010 | 162 |
| 2011 | 197 |
| 2012 | 148 |
| 2013 | 118 |
| 2014 | 98 |
| 2015 | 101 |
| 2016 | 115 |
| 2017 | 107 |
| 2018 | 98 |
| 2019 | 88 |
| 2020 | 91 |
| 2021 | 94 |
| 2022 | 125 |
| 2023 | 176 |
| 2024 | 47 |