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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1951 | 2 |
| 1952 | 2 |
| 1954 | 1 |
| 1955 | 1 |
| 1957 | 1 |
| 1958 | 2 |
| 1959 | 1 |
| 1960 | 3 |
| 1961 | 1 |
| 1962 | 1 |
| 1963 | 15 |
| 1964 | 15 |
| 1965 | 12 |
| 1966 | 29 |
| 1967 | 70 |
| 1968 | 110 |
| 1969 | 271 |
| 1970 | 207 |
| 1971 | 280 |
| 1972 | 285 |
| 1973 | 394 |
| 1974 | 454 |
| 1975 | 402 |
| 1976 | 419 |
| 1977 | 452 |
| 1978 | 458 |
| 1979 | 471 |
| 1980 | 456 |
| 1981 | 443 |
| 1982 | 479 |
| 1983 | 515 |
| 1984 | 437 |
| 1985 | 491 |
| 1986 | 496 |
| 1987 | 413 |
| 1988 | 441 |
| 1989 | 444 |
| 1990 | 410 |
| 1991 | 410 |
| 1992 | 386 |
| 1993 | 392 |
| 1994 | 348 |
| 1995 | 343 |
| 1996 | 336 |
| 1997 | 358 |
| 1998 | 389 |
| 1999 | 291 |
| 2000 | 309 |
| 2001 | 310 |
| 2002 | 314 |
| 2003 | 317 |
| 2004 | 315 |
| 2005 | 346 |
| 2006 | 334 |
| 2007 | 306 |
| 2008 | 345 |
| 2009 | 358 |
| 2010 | 378 |
| 2011 | 375 |
| 2012 | 428 |
| 2013 | 415 |
| 2014 | 386 |
| 2015 | 394 |
| 2016 | 399 |
| 2017 | 363 |
| 2018 | 371 |
| 2019 | 387 |
| 2020 | 359 |
| 2021 | 280 |
| 2022 | 370 |
| 2023 | 271 |
| 2024 | 93 |