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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 2 |
| 1952 | 2 |
| 1953 | 13 |
| 1954 | 5 |
| 1955 | 3 |
| 1956 | 3 |
| 1957 | 2 |
| 1958 | 4 |
| 1959 | 4 |
| 1960 | 3 |
| 1961 | 6 |
| 1962 | 5 |
| 1966 | 16 |
| 1967 | 68 |
| 1968 | 192 |
| 1969 | 235 |
| 1970 | 227 |
| 1971 | 307 |
| 1972 | 370 |
| 1973 | 418 |
| 1974 | 509 |
| 1975 | 350 |
| 1976 | 301 |
| 1977 | 283 |
| 1978 | 291 |
| 1979 | 355 |
| 1980 | 391 |
| 1981 | 329 |
| 1982 | 364 |
| 1983 | 378 |
| 1984 | 397 |
| 1985 | 500 |
| 1986 | 476 |
| 1987 | 387 |
| 1988 | 474 |
| 1989 | 532 |
| 1990 | 538 |
| 1991 | 576 |
| 1992 | 530 |
| 1993 | 561 |
| 1994 | 630 |
| 1995 | 578 |
| 1996 | 665 |
| 1997 | 643 |
| 1998 | 612 |
| 1999 | 607 |
| 2000 | 669 |
| 2001 | 717 |
| 2002 | 774 |
| 2003 | 884 |
| 2004 | 810 |
| 2005 | 1045 |
| 2006 | 1081 |
| 2007 | 1146 |
| 2008 | 1255 |
| 2009 | 1401 |
| 2010 | 1461 |
| 2011 | 1447 |
| 2012 | 1563 |
| 2013 | 1533 |
| 2014 | 1517 |
| 2015 | 1473 |
| 2016 | 1408 |
| 2017 | 1287 |
| 2018 | 1228 |
| 2019 | 1199 |
| 2020 | 1068 |
| 2021 | 632 |
| 2022 | 78 |
| 2023 | 14 |
| 2024 | 3 |