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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 2 |
| 1952 | 4 |
| 1953 | 5 |
| 1954 | 1 |
| 1955 | 1 |
| 1956 | 4 |
| 1957 | 1 |
| 1958 | 4 |
| 1959 | 4 |
| 1960 | 3 |
| 1961 | 6 |
| 1962 | 3 |
| 1965 | 8 |
| 1966 | 27 |
| 1967 | 43 |
| 1968 | 88 |
| 1969 | 91 |
| 1970 | 77 |
| 1971 | 86 |
| 1972 | 95 |
| 1973 | 95 |
| 1974 | 122 |
| 1975 | 112 |
| 1976 | 122 |
| 1977 | 147 |
| 1978 | 203 |
| 1979 | 169 |
| 1980 | 183 |
| 1981 | 205 |
| 1982 | 224 |
| 1983 | 247 |
| 1984 | 232 |
| 1985 | 291 |
| 1986 | 323 |
| 1987 | 334 |
| 1988 | 314 |
| 1989 | 367 |
| 1990 | 318 |
| 1991 | 410 |
| 1992 | 408 |
| 1993 | 435 |
| 1994 | 529 |
| 1995 | 482 |
| 1996 | 566 |
| 1997 | 540 |
| 1998 | 505 |
| 1999 | 572 |
| 2000 | 672 |
| 2001 | 644 |
| 2002 | 604 |
| 2003 | 684 |
| 2004 | 626 |
| 2005 | 730 |
| 2006 | 793 |
| 2007 | 847 |
| 2008 | 864 |
| 2009 | 884 |
| 2010 | 928 |
| 2011 | 952 |
| 2012 | 858 |
| 2013 | 892 |
| 2014 | 874 |
| 2015 | 865 |
| 2016 | 735 |
| 2017 | 649 |
| 2018 | 707 |
| 2019 | 700 |
| 2020 | 671 |
| 2021 | 522 |
| 2022 | 305 |
| 2023 | 239 |
| 2024 | 79 |