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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1956 | 4 |
| 1957 | 1 |
| 1958 | 1 |
| 1960 | 7 |
| 1961 | 5 |
| 1962 | 13 |
| 1963 | 10 |
| 1964 | 3 |
| 1966 | 132 |
| 1967 | 127 |
| 1968 | 119 |
| 1969 | 128 |
| 1970 | 129 |
| 1971 | 120 |
| 1972 | 55 |
| 1978 | 146 |
| 1979 | 265 |
| 1980 | 196 |
| 1981 | 241 |
| 1982 | 241 |
| 1983 | 265 |
| 1984 | 259 |
| 1985 | 292 |
| 1986 | 275 |
| 1987 | 282 |
| 1988 | 285 |
| 1989 | 304 |
| 1990 | 290 |
| 1991 | 322 |
| 1992 | 320 |
| 1993 | 330 |
| 1994 | 309 |
| 1995 | 320 |
| 1996 | 379 |
| 1997 | 376 |
| 1998 | 429 |
| 1999 | 443 |
| 2000 | 506 |
| 2001 | 465 |
| 2002 | 426 |
| 2003 | 464 |
| 2004 | 431 |
| 2005 | 460 |
| 2006 | 555 |
| 2007 | 639 |
| 2008 | 518 |
| 2009 | 526 |
| 2010 | 569 |
| 2011 | 618 |
| 2012 | 681 |
| 2013 | 814 |
| 2014 | 738 |
| 2015 | 786 |
| 2016 | 861 |
| 2017 | 1048 |
| 2018 | 1209 |
| 2019 | 1156 |
| 2020 | 1575 |
| 2021 | 1372 |
| 2022 | 1365 |
| 2023 | 1371 |
| 2024 | 549 |