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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1950 | 1 |
| 1951 | 1 |
| 1953 | 1 |
| 1954 | 2 |
| 1957 | 1 |
| 1959 | 2 |
| 1961 | 2 |
| 1962 | 1 |
| 1963 | 2 |
| 1965 | 2 |
| 1968 | 1 |
| 1971 | 1 |
| 1975 | 18 |
| 1976 | 17 |
| 1977 | 27 |
| 1978 | 127 |
| 1979 | 173 |
| 1980 | 114 |
| 1981 | 97 |
| 1982 | 66 |
| 1983 | 81 |
| 1984 | 68 |
| 1985 | 77 |
| 1986 | 87 |
| 1987 | 83 |
| 1988 | 106 |
| 1989 | 114 |
| 1990 | 132 |
| 1991 | 196 |
| 1992 | 281 |
| 1993 | 281 |
| 1994 | 324 |
| 1995 | 272 |
| 1996 | 283 |
| 1997 | 255 |
| 1998 | 366 |
| 1999 | 344 |
| 2000 | 285 |
| 2001 | 363 |
| 2002 | 334 |
| 2003 | 355 |
| 2004 | 373 |
| 2005 | 429 |
| 2006 | 394 |
| 2007 | 462 |
| 2008 | 449 |
| 2009 | 409 |
| 2010 | 419 |
| 2011 | 420 |
| 2012 | 400 |
| 2013 | 393 |
| 2014 | 339 |
| 2015 | 344 |
| 2016 | 282 |
| 2017 | 219 |
| 2018 | 210 |
| 2019 | 170 |
| 2020 | 173 |
| 2021 | 85 |
| 2022 | 66 |
| 2023 | 40 |
| 2024 | 25 |