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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 10 |
| 1952 | 26 |
| 1953 | 49 |
| 1954 | 57 |
| 1955 | 103 |
| 1956 | 77 |
| 1957 | 57 |
| 1958 | 54 |
| 1959 | 46 |
| 1963 | 1 |
| 1964 | 4 |
| 1965 | 128 |
| 1966 | 167 |
| 1967 | 185 |
| 1968 | 244 |
| 1969 | 223 |
| 1970 | 257 |
| 1971 | 288 |
| 1972 | 269 |
| 1973 | 303 |
| 1974 | 349 |
| 1975 | 287 |
| 1976 | 281 |
| 1977 | 289 |
| 1978 | 317 |
| 1979 | 336 |
| 1980 | 315 |
| 1981 | 352 |
| 1982 | 346 |
| 1983 | 328 |
| 1984 | 374 |
| 1985 | 357 |
| 1986 | 406 |
| 1987 | 318 |
| 1988 | 276 |
| 1989 | 261 |
| 1990 | 287 |
| 1991 | 240 |
| 1992 | 290 |
| 1993 | 220 |
| 1994 | 246 |
| 1995 | 260 |
| 1996 | 356 |
| 1997 | 416 |
| 1998 | 381 |
| 1999 | 455 |
| 2000 | 477 |
| 2001 | 465 |
| 2002 | 454 |
| 2003 | 665 |
| 2004 | 606 |
| 2005 | 618 |
| 2006 | 640 |
| 2007 | 647 |
| 2008 | 592 |
| 2009 | 673 |
| 2010 | 654 |
| 2011 | 627 |
| 2012 | 680 |
| 2013 | 708 |
| 2014 | 694 |
| 2015 | 668 |
| 2016 | 675 |
| 2017 | 623 |
| 2018 | 614 |
| 2019 | 669 |
| 2020 | 558 |
| 2021 | 494 |
| 2022 | 474 |
| 2023 | 462 |
| 2024 | 677 |
| 2025 | 360 |