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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1964 | 1 |
| 1965 | 10 |
| 1966 | 25 |
| 1967 | 22 |
| 1968 | 53 |
| 1969 | 35 |
| 1970 | 75 |
| 1971 | 56 |
| 1972 | 57 |
| 1973 | 61 |
| 1974 | 62 |
| 1975 | 50 |
| 1976 | 61 |
| 1977 | 44 |
| 1978 | 54 |
| 1979 | 53 |
| 1980 | 78 |
| 1981 | 92 |
| 1982 | 121 |
| 1983 | 127 |
| 1984 | 199 |
| 1985 | 182 |
| 1986 | 194 |
| 1987 | 207 |
| 1988 | 176 |
| 1989 | 150 |
| 1990 | 197 |
| 1991 | 169 |
| 1992 | 181 |
| 1993 | 157 |
| 1994 | 132 |
| 1995 | 214 |
| 1996 | 341 |
| 1997 | 366 |
| 1998 | 348 |
| 1999 | 375 |
| 2000 | 369 |
| 2001 | 314 |
| 2002 | 313 |
| 2003 | 336 |
| 2004 | 307 |
| 2005 | 319 |
| 2006 | 339 |
| 2007 | 309 |
| 2008 | 330 |
| 2009 | 341 |
| 2010 | 394 |
| 2011 | 355 |
| 2012 | 371 |
| 2013 | 386 |
| 2014 | 377 |
| 2015 | 299 |
| 2016 | 282 |
| 2017 | 262 |
| 2018 | 247 |
| 2019 | 257 |
| 2020 | 203 |
| 2021 | 106 |
| 2022 | 31 |
| 2023 | 27 |
| 2024 | 11 |