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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1953 | 1 |
| 1954 | 2 |
| 1958 | 1 |
| 1959 | 1 |
| 1960 | 1 |
| 1964 | 1 |
| 1965 | 1 |
| 1966 | 3 |
| 1967 | 2 |
| 1968 | 18 |
| 1969 | 18 |
| 1970 | 63 |
| 1971 | 565 |
| 1972 | 856 |
| 1973 | 837 |
| 1974 | 950 |
| 1975 | 753 |
| 1976 | 485 |
| 1977 | 396 |
| 1978 | 393 |
| 1979 | 409 |
| 1980 | 418 |
| 1981 | 387 |
| 1982 | 419 |
| 1983 | 416 |
| 1984 | 432 |
| 1985 | 441 |
| 1986 | 442 |
| 1987 | 347 |
| 1988 | 402 |
| 1989 | 454 |
| 1990 | 478 |
| 1991 | 495 |
| 1992 | 376 |
| 1993 | 343 |
| 1994 | 391 |
| 1995 | 418 |
| 1996 | 328 |
| 1997 | 254 |
| 1998 | 344 |
| 1999 | 308 |
| 2000 | 363 |
| 2001 | 412 |
| 2002 | 335 |
| 2003 | 288 |
| 2004 | 249 |
| 2005 | 243 |
| 2006 | 236 |
| 2007 | 220 |
| 2008 | 219 |
| 2009 | 227 |
| 2010 | 195 |
| 2011 | 184 |
| 2012 | 157 |
| 2013 | 159 |
| 2014 | 136 |
| 2015 | 174 |
| 2016 | 123 |
| 2017 | 174 |
| 2018 | 91 |
| 2019 | 76 |
| 2020 | 90 |
| 2021 | 89 |
| 2022 | 11 |
| 2023 | 13 |
| 2024 | 5 |