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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1955 | 5 |
| 1956 | 4 |
| 1957 | 1 |
| 1959 | 5 |
| 1960 | 11 |
| 1961 | 16 |
| 1962 | 8 |
| 1964 | 4 |
| 1965 | 49 |
| 1966 | 72 |
| 1967 | 90 |
| 1968 | 103 |
| 1969 | 91 |
| 1970 | 113 |
| 1971 | 134 |
| 1972 | 123 |
| 1973 | 127 |
| 1974 | 120 |
| 1975 | 127 |
| 1976 | 169 |
| 1977 | 211 |
| 1978 | 358 |
| 1979 | 263 |
| 1980 | 300 |
| 1981 | 329 |
| 1982 | 332 |
| 1983 | 356 |
| 1984 | 333 |
| 1985 | 407 |
| 1986 | 432 |
| 1987 | 398 |
| 1988 | 415 |
| 1989 | 405 |
| 1990 | 485 |
| 1991 | 492 |
| 1992 | 428 |
| 1993 | 497 |
| 1994 | 566 |
| 1995 | 560 |
| 1996 | 546 |
| 1997 | 549 |
| 1998 | 562 |
| 1999 | 595 |
| 2000 | 563 |
| 2001 | 631 |
| 2002 | 591 |
| 2003 | 618 |
| 2004 | 633 |
| 2005 | 743 |
| 2006 | 745 |
| 2007 | 726 |
| 2008 | 730 |
| 2009 | 839 |
| 2010 | 936 |
| 2011 | 997 |
| 2012 | 1019 |
| 2013 | 1044 |
| 2014 | 1079 |
| 2015 | 1099 |
| 2016 | 1023 |
| 2017 | 1021 |
| 2018 | 1019 |
| 2019 | 1123 |
| 2020 | 1099 |
| 2021 | 973 |
| 2022 | 777 |
| 2023 | 677 |
| 2024 | 285 |