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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 8 |
| 1948 | 6 |
| 1949 | 20 |
| 1950 | 22 |
| 1951 | 27 |
| 1952 | 28 |
| 1953 | 29 |
| 1954 | 35 |
| 1955 | 35 |
| 1956 | 69 |
| 1957 | 91 |
| 1958 | 83 |
| 1959 | 96 |
| 1960 | 97 |
| 1961 | 109 |
| 1962 | 154 |
| 1963 | 381 |
| 1964 | 567 |
| 1965 | 422 |
| 1966 | 506 |
| 1967 | 529 |
| 1968 | 589 |
| 1969 | 578 |
| 1970 | 512 |
| 1971 | 624 |
| 1972 | 707 |
| 1973 | 645 |
| 1974 | 603 |
| 1975 | 401 |
| 1976 | 342 |
| 1977 | 332 |
| 1978 | 417 |
| 1979 | 469 |
| 1980 | 500 |
| 1981 | 358 |
| 1982 | 398 |
| 1983 | 492 |
| 1984 | 456 |
| 1985 | 419 |
| 1986 | 465 |
| 1987 | 457 |
| 1988 | 411 |
| 1989 | 362 |
| 1990 | 390 |
| 1991 | 426 |
| 1992 | 463 |
| 1993 | 467 |
| 1994 | 529 |
| 1995 | 542 |
| 1996 | 543 |
| 1997 | 541 |
| 1998 | 579 |
| 1999 | 556 |
| 2000 | 563 |
| 2001 | 521 |
| 2002 | 574 |
| 2003 | 582 |
| 2004 | 529 |
| 2005 | 578 |
| 2006 | 590 |
| 2007 | 612 |
| 2008 | 723 |
| 2009 | 960 |
| 2010 | 994 |
| 2011 | 1072 |
| 2012 | 1146 |
| 2013 | 1269 |
| 2014 | 1205 |
| 2015 | 1142 |
| 2016 | 1093 |
| 2017 | 1123 |
| 2018 | 964 |
| 2019 | 967 |
| 2020 | 854 |
| 2021 | 708 |
| 2022 | 621 |
| 2023 | 519 |
| 2024 | 616 |
| 2025 | 425 |