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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1965 | 4 |
| 1966 | 15 |
| 1967 | 20 |
| 1968 | 26 |
| 1969 | 35 |
| 1970 | 68 |
| 1971 | 122 |
| 1972 | 64 |
| 1973 | 78 |
| 1974 | 96 |
| 1975 | 108 |
| 1976 | 75 |
| 1977 | 118 |
| 1978 | 85 |
| 1979 | 103 |
| 1980 | 103 |
| 1981 | 101 |
| 1982 | 99 |
| 1983 | 108 |
| 1984 | 139 |
| 1985 | 101 |
| 1986 | 113 |
| 1987 | 130 |
| 1988 | 114 |
| 1989 | 136 |
| 1990 | 149 |
| 1991 | 157 |
| 1992 | 174 |
| 1993 | 152 |
| 1994 | 169 |
| 1995 | 199 |
| 1996 | 168 |
| 1997 | 170 |
| 1998 | 207 |
| 1999 | 212 |
| 2000 | 185 |
| 2001 | 220 |
| 2002 | 237 |
| 2003 | 240 |
| 2004 | 247 |
| 2005 | 242 |
| 2006 | 285 |
| 2007 | 335 |
| 2008 | 382 |
| 2009 | 417 |
| 2010 | 460 |
| 2011 | 428 |
| 2012 | 411 |
| 2013 | 490 |
| 2014 | 398 |
| 2015 | 408 |
| 2016 | 383 |
| 2017 | 440 |
| 2018 | 415 |
| 2019 | 401 |
| 2020 | 381 |
| 2021 | 297 |
| 2022 | 126 |
| 2023 | 124 |
| 2024 | 31 |