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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 1 |
| 1963 | 1 |
| 1964 | 2 |
| 1965 | 18 |
| 1966 | 45 |
| 1967 | 54 |
| 1968 | 75 |
| 1969 | 80 |
| 1970 | 86 |
| 1971 | 104 |
| 1972 | 129 |
| 1973 | 157 |
| 1974 | 215 |
| 1975 | 217 |
| 1976 | 246 |
| 1977 | 256 |
| 1978 | 336 |
| 1979 | 374 |
| 1980 | 476 |
| 1981 | 483 |
| 1982 | 488 |
| 1983 | 615 |
| 1984 | 777 |
| 1985 | 861 |
| 1986 | 960 |
| 1987 | 877 |
| 1988 | 870 |
| 1989 | 927 |
| 1990 | 968 |
| 1991 | 1033 |
| 1992 | 969 |
| 1993 | 924 |
| 1994 | 911 |
| 1995 | 865 |
| 1996 | 1040 |
| 1997 | 1015 |
| 1998 | 1059 |
| 1999 | 1156 |
| 2000 | 1325 |
| 2001 | 1317 |
| 2002 | 1403 |
| 2003 | 1478 |
| 2004 | 1603 |
| 2005 | 1886 |
| 2006 | 2003 |
| 2007 | 2087 |
| 2008 | 2221 |
| 2009 | 2431 |
| 2010 | 2472 |
| 2011 | 2522 |
| 2012 | 2338 |
| 2013 | 2208 |
| 2014 | 2335 |
| 2015 | 2431 |
| 2016 | 2285 |
| 2017 | 2387 |
| 2018 | 2439 |
| 2019 | 2334 |
| 2020 | 1841 |
| 2021 | 1058 |
| 2022 | 132 |
| 2023 | 25 |
| 2024 | 93 |