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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 3 |
| 1953 | 1 |
| 1954 | 6 |
| 1955 | 3 |
| 1956 | 1 |
| 1957 | 12 |
| 1958 | 1 |
| 1959 | 9 |
| 1960 | 3 |
| 1961 | 18 |
| 1962 | 16 |
| 1963 | 22 |
| 1964 | 27 |
| 1965 | 36 |
| 1966 | 33 |
| 1967 | 47 |
| 1968 | 60 |
| 1969 | 62 |
| 1970 | 59 |
| 1971 | 67 |
| 1972 | 42 |
| 1973 | 45 |
| 1974 | 52 |
| 1975 | 59 |
| 1976 | 55 |
| 1977 | 72 |
| 1978 | 93 |
| 1979 | 73 |
| 1980 | 84 |
| 1981 | 89 |
| 1982 | 118 |
| 1983 | 107 |
| 1984 | 130 |
| 1985 | 116 |
| 1986 | 134 |
| 1987 | 143 |
| 1988 | 215 |
| 1989 | 222 |
| 1990 | 182 |
| 1991 | 196 |
| 1992 | 214 |
| 1993 | 214 |
| 1994 | 219 |
| 1995 | 223 |
| 1996 | 257 |
| 1997 | 286 |
| 1998 | 332 |
| 1999 | 316 |
| 2000 | 369 |
| 2001 | 358 |
| 2002 | 372 |
| 2003 | 392 |
| 2004 | 395 |
| 2005 | 416 |
| 2006 | 359 |
| 2007 | 371 |
| 2008 | 433 |
| 2009 | 416 |
| 2010 | 480 |
| 2011 | 477 |
| 2012 | 508 |
| 2013 | 515 |
| 2014 | 594 |
| 2015 | 638 |
| 2016 | 648 |
| 2017 | 625 |
| 2018 | 617 |
| 2019 | 583 |
| 2020 | 596 |
| 2021 | 721 |
| 2022 | 603 |
| 2023 | 563 |
| 2024 | 606 |
| 2025 | 21 |