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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1949 | 1 |
| 1964 | 4 |
| 1965 | 9 |
| 1966 | 14 |
| 1967 | 20 |
| 1968 | 20 |
| 1969 | 25 |
| 1970 | 31 |
| 1971 | 33 |
| 1972 | 36 |
| 1973 | 32 |
| 1974 | 38 |
| 1975 | 40 |
| 1976 | 43 |
| 1977 | 55 |
| 1978 | 62 |
| 1979 | 69 |
| 1980 | 67 |
| 1981 | 96 |
| 1982 | 101 |
| 1983 | 120 |
| 1984 | 120 |
| 1985 | 144 |
| 1986 | 167 |
| 1987 | 194 |
| 1988 | 189 |
| 1989 | 126 |
| 1990 | 160 |
| 1991 | 141 |
| 1992 | 165 |
| 1993 | 196 |
| 1994 | 200 |
| 1995 | 220 |
| 1996 | 176 |
| 1997 | 187 |
| 1998 | 228 |
| 1999 | 250 |
| 2000 | 239 |
| 2001 | 235 |
| 2002 | 234 |
| 2003 | 289 |
| 2004 | 300 |
| 2005 | 356 |
| 2006 | 354 |
| 2007 | 358 |
| 2008 | 353 |
| 2009 | 418 |
| 2010 | 422 |
| 2011 | 465 |
| 2012 | 457 |
| 2013 | 460 |
| 2014 | 554 |
| 2015 | 510 |
| 2016 | 463 |
| 2017 | 390 |
| 2018 | 466 |
| 2019 | 451 |
| 2020 | 391 |
| 2021 | 385 |
| 2022 | 558 |
| 2023 | 459 |
| 2024 | 200 |