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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 3 |
| 1948 | 1 |
| 1949 | 7 |
| 1950 | 19 |
| 1951 | 5 |
| 1958 | 1 |
| 1960 | 1 |
| 1962 | 1 |
| 1965 | 3 |
| 1966 | 9 |
| 1967 | 7 |
| 1968 | 8 |
| 1969 | 19 |
| 1970 | 24 |
| 1971 | 29 |
| 1972 | 32 |
| 1973 | 15 |
| 1974 | 20 |
| 1975 | 24 |
| 1976 | 16 |
| 1977 | 20 |
| 1978 | 20 |
| 1979 | 25 |
| 1980 | 13 |
| 1981 | 21 |
| 1982 | 30 |
| 1983 | 30 |
| 1984 | 33 |
| 1985 | 37 |
| 1986 | 54 |
| 1987 | 49 |
| 1988 | 70 |
| 1989 | 109 |
| 1990 | 113 |
| 1991 | 149 |
| 1992 | 187 |
| 1993 | 178 |
| 1994 | 201 |
| 1995 | 280 |
| 1996 | 204 |
| 1997 | 279 |
| 1998 | 324 |
| 1999 | 363 |
| 2000 | 381 |
| 2001 | 377 |
| 2002 | 400 |
| 2003 | 477 |
| 2004 | 463 |
| 2005 | 567 |
| 2006 | 540 |
| 2007 | 556 |
| 2008 | 527 |
| 2009 | 586 |
| 2010 | 528 |
| 2011 | 470 |
| 2012 | 468 |
| 2013 | 463 |
| 2014 | 393 |
| 2015 | 390 |
| 2016 | 396 |
| 2017 | 402 |
| 2018 | 372 |
| 2019 | 301 |
| 2020 | 322 |
| 2021 | 301 |
| 2022 | 192 |
| 2023 | 171 |
| 2024 | 198 |