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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1955 | 1 |
| 1964 | 1 |
| 1965 | 14 |
| 1966 | 21 |
| 1967 | 38 |
| 1968 | 41 |
| 1969 | 49 |
| 1970 | 51 |
| 1971 | 67 |
| 1972 | 71 |
| 1973 | 91 |
| 1974 | 104 |
| 1975 | 81 |
| 1976 | 89 |
| 1977 | 88 |
| 1978 | 63 |
| 1979 | 79 |
| 1980 | 135 |
| 1981 | 106 |
| 1982 | 86 |
| 1983 | 110 |
| 1984 | 151 |
| 1985 | 183 |
| 1986 | 172 |
| 1987 | 179 |
| 1988 | 187 |
| 1989 | 173 |
| 1990 | 219 |
| 1991 | 176 |
| 1992 | 166 |
| 1993 | 183 |
| 1994 | 189 |
| 1995 | 196 |
| 1996 | 262 |
| 1997 | 291 |
| 1998 | 265 |
| 1999 | 336 |
| 2000 | 371 |
| 2001 | 404 |
| 2002 | 472 |
| 2003 | 581 |
| 2004 | 616 |
| 2005 | 749 |
| 2006 | 779 |
| 2007 | 798 |
| 2008 | 818 |
| 2009 | 908 |
| 2010 | 1019 |
| 2011 | 1109 |
| 2012 | 1181 |
| 2013 | 1257 |
| 2014 | 1323 |
| 2015 | 1288 |
| 2016 | 1206 |
| 2017 | 1148 |
| 2018 | 1148 |
| 2019 | 1233 |
| 2020 | 1300 |
| 2021 | 1426 |
| 2022 | 1311 |
| 2023 | 1252 |
| 2024 | 499 |