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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 27 |
| 1960 | 65 |
| 1961 | 62 |
| 1962 | 52 |
| 1964 | 8 |
| 1965 | 97 |
| 1966 | 150 |
| 1967 | 127 |
| 1968 | 179 |
| 1969 | 157 |
| 1970 | 161 |
| 1971 | 182 |
| 1972 | 144 |
| 1973 | 123 |
| 1974 | 131 |
| 1975 | 88 |
| 1976 | 76 |
| 1977 | 85 |
| 1978 | 100 |
| 1979 | 114 |
| 1980 | 108 |
| 1981 | 108 |
| 1982 | 137 |
| 1983 | 138 |
| 1984 | 95 |
| 1985 | 111 |
| 1986 | 93 |
| 1987 | 115 |
| 1988 | 108 |
| 1989 | 104 |
| 1990 | 160 |
| 1991 | 106 |
| 1992 | 133 |
| 1993 | 141 |
| 1994 | 128 |
| 1995 | 233 |
| 1996 | 331 |
| 1997 | 330 |
| 1998 | 343 |
| 1999 | 409 |
| 2000 | 366 |
| 2001 | 451 |
| 2002 | 468 |
| 2003 | 460 |
| 2004 | 492 |
| 2005 | 468 |
| 2006 | 537 |
| 2007 | 617 |
| 2008 | 661 |
| 2009 | 645 |
| 2010 | 796 |
| 2011 | 911 |
| 2012 | 978 |
| 2013 | 969 |
| 2014 | 972 |
| 2015 | 1056 |
| 2016 | 1007 |
| 2017 | 1054 |
| 2018 | 1030 |
| 2019 | 1123 |
| 2020 | 967 |
| 2021 | 831 |
| 2022 | 687 |
| 2023 | 567 |
| 2024 | 159 |