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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 2 |
| 1964 | 2 |
| 1965 | 38 |
| 1966 | 86 |
| 1967 | 91 |
| 1968 | 148 |
| 1969 | 157 |
| 1970 | 187 |
| 1971 | 241 |
| 1972 | 247 |
| 1973 | 194 |
| 1974 | 178 |
| 1975 | 176 |
| 1976 | 137 |
| 1977 | 106 |
| 1978 | 102 |
| 1979 | 144 |
| 1980 | 104 |
| 1981 | 113 |
| 1982 | 113 |
| 1983 | 115 |
| 1984 | 117 |
| 1985 | 125 |
| 1986 | 149 |
| 1987 | 170 |
| 1988 | 212 |
| 1989 | 260 |
| 1990 | 346 |
| 1991 | 435 |
| 1992 | 550 |
| 1993 | 574 |
| 1994 | 614 |
| 1995 | 684 |
| 1996 | 718 |
| 1997 | 743 |
| 1998 | 727 |
| 1999 | 779 |
| 2000 | 823 |
| 2001 | 785 |
| 2002 | 765 |
| 2003 | 888 |
| 2004 | 866 |
| 2005 | 952 |
| 2006 | 949 |
| 2007 | 945 |
| 2008 | 1075 |
| 2009 | 1213 |
| 2010 | 1304 |
| 2011 | 1363 |
| 2012 | 1339 |
| 2013 | 1465 |
| 2014 | 1355 |
| 2015 | 1321 |
| 2016 | 1132 |
| 2017 | 1143 |
| 2018 | 1082 |
| 2019 | 1043 |
| 2020 | 821 |
| 2021 | 527 |
| 2022 | 69 |
| 2023 | 35 |
| 2024 | 3 |