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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 1 |
| 1953 | 1 |
| 1954 | 1 |
| 1955 | 2 |
| 1956 | 3 |
| 1957 | 4 |
| 1958 | 8 |
| 1959 | 8 |
| 1960 | 4 |
| 1961 | 3 |
| 1962 | 2 |
| 1964 | 4 |
| 1965 | 26 |
| 1966 | 50 |
| 1967 | 52 |
| 1968 | 60 |
| 1969 | 82 |
| 1970 | 92 |
| 1971 | 106 |
| 1972 | 121 |
| 1973 | 131 |
| 1974 | 142 |
| 1975 | 128 |
| 1976 | 149 |
| 1977 | 139 |
| 1978 | 127 |
| 1979 | 136 |
| 1980 | 156 |
| 1981 | 172 |
| 1982 | 153 |
| 1983 | 147 |
| 1984 | 195 |
| 1985 | 223 |
| 1986 | 217 |
| 1987 | 226 |
| 1988 | 274 |
| 1989 | 359 |
| 1990 | 368 |
| 1991 | 330 |
| 1992 | 326 |
| 1993 | 467 |
| 1994 | 379 |
| 1995 | 397 |
| 1996 | 359 |
| 1997 | 407 |
| 1998 | 384 |
| 1999 | 428 |
| 2000 | 572 |
| 2001 | 591 |
| 2002 | 564 |
| 2003 | 592 |
| 2004 | 565 |
| 2005 | 593 |
| 2006 | 590 |
| 2007 | 613 |
| 2008 | 678 |
| 2009 | 683 |
| 2010 | 702 |
| 2011 | 638 |
| 2012 | 729 |
| 2013 | 817 |
| 2014 | 850 |
| 2015 | 919 |
| 2016 | 929 |
| 2017 | 854 |
| 2018 | 805 |
| 2019 | 865 |
| 2020 | 767 |
| 2021 | 697 |
| 2022 | 527 |
| 2023 | 505 |
| 2024 | 285 |