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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 25 |
| 1948 | 15 |
| 1949 | 27 |
| 1950 | 27 |
| 1951 | 48 |
| 1952 | 46 |
| 1953 | 49 |
| 1954 | 56 |
| 1955 | 60 |
| 1956 | 43 |
| 1957 | 58 |
| 1958 | 67 |
| 1959 | 50 |
| 1960 | 54 |
| 1961 | 55 |
| 1962 | 58 |
| 1963 | 65 |
| 1964 | 69 |
| 1965 | 31 |
| 1966 | 61 |
| 1967 | 81 |
| 1968 | 71 |
| 1969 | 87 |
| 1970 | 87 |
| 1971 | 106 |
| 1972 | 86 |
| 1973 | 129 |
| 1974 | 115 |
| 1975 | 154 |
| 1976 | 201 |
| 1977 | 205 |
| 1978 | 193 |
| 1979 | 227 |
| 1980 | 236 |
| 1981 | 230 |
| 1982 | 273 |
| 1983 | 334 |
| 1984 | 362 |
| 1985 | 346 |
| 1986 | 379 |
| 1987 | 361 |
| 1988 | 486 |
| 1989 | 456 |
| 1990 | 496 |
| 1991 | 531 |
| 1992 | 510 |
| 1993 | 541 |
| 1994 | 520 |
| 1995 | 510 |
| 1996 | 490 |
| 1997 | 469 |
| 1998 | 463 |
| 1999 | 523 |
| 2000 | 598 |
| 2001 | 549 |
| 2002 | 525 |
| 2003 | 576 |
| 2004 | 429 |
| 2005 | 397 |
| 2006 | 410 |
| 2007 | 415 |
| 2008 | 358 |
| 2009 | 413 |
| 2010 | 343 |
| 2011 | 346 |
| 2012 | 389 |
| 2013 | 400 |
| 2014 | 418 |
| 2015 | 427 |
| 2016 | 434 |
| 2017 | 418 |
| 2018 | 383 |
| 2019 | 415 |
| 2020 | 483 |
| 2021 | 416 |
| 2022 | 358 |
| 2023 | 330 |
| 2024 | 326 |
| 2025 | 454 |
| 2026 | 439 |