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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1956 | 33 |
| 1957 | 43 |
| 1958 | 50 |
| 1959 | 56 |
| 1960 | 50 |
| 1961 | 65 |
| 1962 | 35 |
| 1963 | 1 |
| 1964 | 8 |
| 1965 | 84 |
| 1966 | 169 |
| 1967 | 187 |
| 1968 | 216 |
| 1969 | 218 |
| 1970 | 218 |
| 1971 | 234 |
| 1972 | 279 |
| 1973 | 294 |
| 1974 | 326 |
| 1975 | 343 |
| 1976 | 304 |
| 1977 | 354 |
| 1978 | 358 |
| 1979 | 338 |
| 1980 | 392 |
| 1981 | 381 |
| 1982 | 339 |
| 1983 | 368 |
| 1984 | 371 |
| 1985 | 346 |
| 1986 | 357 |
| 1987 | 387 |
| 1988 | 367 |
| 1989 | 410 |
| 1990 | 356 |
| 1991 | 383 |
| 1992 | 403 |
| 1993 | 372 |
| 1994 | 354 |
| 1995 | 412 |
| 1996 | 435 |
| 1997 | 470 |
| 1998 | 429 |
| 1999 | 453 |
| 2000 | 474 |
| 2001 | 609 |
| 2002 | 618 |
| 2003 | 607 |
| 2004 | 560 |
| 2005 | 556 |
| 2006 | 523 |
| 2007 | 486 |
| 2008 | 514 |
| 2009 | 472 |
| 2010 | 431 |
| 2011 | 455 |
| 2012 | 421 |
| 2013 | 408 |
| 2014 | 403 |
| 2015 | 343 |
| 2016 | 330 |
| 2017 | 325 |
| 2018 | 327 |
| 2019 | 303 |
| 2020 | 257 |
| 2021 | 183 |
| 2022 | 85 |
| 2023 | 65 |
| 2024 | 48 |