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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1953 | 2 |
| 1954 | 3 |
| 1955 | 3 |
| 1957 | 3 |
| 1958 | 8 |
| 1959 | 9 |
| 1960 | 8 |
| 1961 | 9 |
| 1962 | 2 |
| 1964 | 1 |
| 1965 | 14 |
| 1966 | 42 |
| 1967 | 75 |
| 1968 | 116 |
| 1969 | 134 |
| 1970 | 181 |
| 1971 | 217 |
| 1972 | 280 |
| 1973 | 336 |
| 1974 | 341 |
| 1975 | 294 |
| 1976 | 254 |
| 1977 | 324 |
| 1978 | 290 |
| 1979 | 300 |
| 1980 | 319 |
| 1981 | 316 |
| 1982 | 417 |
| 1983 | 457 |
| 1984 | 464 |
| 1985 | 516 |
| 1986 | 399 |
| 1987 | 375 |
| 1988 | 352 |
| 1989 | 391 |
| 1990 | 353 |
| 1991 | 317 |
| 1992 | 383 |
| 1993 | 391 |
| 1994 | 389 |
| 1995 | 369 |
| 1996 | 419 |
| 1997 | 428 |
| 1998 | 438 |
| 1999 | 481 |
| 2000 | 450 |
| 2001 | 507 |
| 2002 | 479 |
| 2003 | 489 |
| 2004 | 527 |
| 2005 | 506 |
| 2006 | 550 |
| 2007 | 540 |
| 2008 | 568 |
| 2009 | 598 |
| 2010 | 582 |
| 2011 | 678 |
| 2012 | 671 |
| 2013 | 645 |
| 2014 | 700 |
| 2015 | 659 |
| 2016 | 628 |
| 2017 | 610 |
| 2018 | 581 |
| 2019 | 629 |
| 2020 | 497 |
| 2021 | 440 |
| 2022 | 76 |
| 2023 | 16 |
| 2024 | 26 |