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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 1 |
| 1965 | 29 |
| 1966 | 29 |
| 1967 | 36 |
| 1968 | 40 |
| 1969 | 28 |
| 1970 | 27 |
| 1971 | 25 |
| 1972 | 24 |
| 1973 | 13 |
| 1974 | 8 |
| 1975 | 11 |
| 1976 | 15 |
| 1977 | 14 |
| 1978 | 21 |
| 1979 | 43 |
| 1980 | 26 |
| 1981 | 48 |
| 1982 | 59 |
| 1983 | 46 |
| 1984 | 53 |
| 1985 | 53 |
| 1986 | 41 |
| 1987 | 47 |
| 1988 | 48 |
| 1989 | 67 |
| 1990 | 84 |
| 1991 | 111 |
| 1992 | 155 |
| 1993 | 111 |
| 1994 | 104 |
| 1995 | 142 |
| 1996 | 275 |
| 1997 | 227 |
| 1998 | 255 |
| 1999 | 257 |
| 2000 | 220 |
| 2001 | 191 |
| 2002 | 226 |
| 2003 | 240 |
| 2004 | 242 |
| 2005 | 254 |
| 2006 | 246 |
| 2007 | 266 |
| 2008 | 266 |
| 2009 | 257 |
| 2010 | 298 |
| 2011 | 290 |
| 2012 | 318 |
| 2013 | 329 |
| 2014 | 327 |
| 2015 | 333 |
| 2016 | 294 |
| 2017 | 315 |
| 2018 | 280 |
| 2019 | 255 |
| 2020 | 305 |
| 2021 | 242 |
| 2022 | 193 |
| 2023 | 198 |
| 2024 | 224 |
| 2025 | 1 |