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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 4 |
| 1952 | 7 |
| 1953 | 25 |
| 1954 | 23 |
| 1955 | 26 |
| 1956 | 35 |
| 1957 | 38 |
| 1958 | 35 |
| 1959 | 25 |
| 1960 | 54 |
| 1961 | 52 |
| 1962 | 44 |
| 1964 | 3 |
| 1965 | 9 |
| 1966 | 183 |
| 1967 | 338 |
| 1968 | 595 |
| 1969 | 744 |
| 1970 | 699 |
| 1971 | 882 |
| 1972 | 997 |
| 1973 | 1060 |
| 1974 | 1034 |
| 1975 | 828 |
| 1976 | 592 |
| 1977 | 536 |
| 1978 | 517 |
| 1979 | 524 |
| 1980 | 484 |
| 1981 | 409 |
| 1982 | 431 |
| 1983 | 431 |
| 1984 | 543 |
| 1985 | 513 |
| 1986 | 492 |
| 1987 | 419 |
| 1988 | 427 |
| 1989 | 445 |
| 1990 | 496 |
| 1991 | 470 |
| 1992 | 458 |
| 1993 | 496 |
| 1994 | 538 |
| 1995 | 456 |
| 1996 | 393 |
| 1997 | 408 |
| 1998 | 451 |
| 1999 | 373 |
| 2000 | 361 |
| 2001 | 336 |
| 2002 | 330 |
| 2003 | 317 |
| 2004 | 296 |
| 2005 | 268 |
| 2006 | 298 |
| 2007 | 320 |
| 2008 | 285 |
| 2009 | 272 |
| 2010 | 306 |
| 2011 | 271 |
| 2012 | 254 |
| 2013 | 275 |
| 2014 | 259 |
| 2015 | 227 |
| 2016 | 192 |
| 2017 | 185 |
| 2018 | 139 |
| 2019 | 171 |
| 2020 | 134 |
| 2021 | 70 |
| 2022 | 11 |
| 2023 | 6 |
| 2024 | 19 |