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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 | 58 |
| 1971 | 67 |
| 1972 | 42 |
| 1973 | 44 |
| 1974 | 49 |
| 1975 | 58 |
| 1976 | 52 |
| 1977 | 69 |
| 1978 | 91 |
| 1979 | 68 |
| 1980 | 80 |
| 1981 | 86 |
| 1982 | 115 |
| 1983 | 105 |
| 1984 | 123 |
| 1985 | 113 |
| 1986 | 130 |
| 1987 | 140 |
| 1988 | 211 |
| 1989 | 215 |
| 1990 | 178 |
| 1991 | 192 |
| 1992 | 209 |
| 1993 | 206 |
| 1994 | 211 |
| 1995 | 221 |
| 1996 | 245 |
| 1997 | 274 |
| 1998 | 326 |
| 1999 | 307 |
| 2000 | 365 |
| 2001 | 351 |
| 2002 | 370 |
| 2003 | 386 |
| 2004 | 390 |
| 2005 | 414 |
| 2006 | 352 |
| 2007 | 364 |
| 2008 | 426 |
| 2009 | 410 |
| 2010 | 471 |
| 2011 | 471 |
| 2012 | 497 |
| 2013 | 504 |
| 2014 | 585 |
| 2015 | 627 |
| 2016 | 640 |
| 2017 | 608 |
| 2018 | 606 |
| 2019 | 570 |
| 2020 | 584 |
| 2021 | 707 |
| 2022 | 592 |
| 2023 | 549 |
| 2024 | 601 |
| 2025 | 357 |