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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1956 | 1 |
| 1959 | 1 |
| 1963 | 1 |
| 1965 | 16 |
| 1966 | 40 |
| 1967 | 65 |
| 1968 | 73 |
| 1969 | 105 |
| 1970 | 119 |
| 1971 | 96 |
| 1972 | 85 |
| 1973 | 109 |
| 1974 | 110 |
| 1975 | 111 |
| 1976 | 80 |
| 1977 | 106 |
| 1978 | 100 |
| 1979 | 112 |
| 1980 | 82 |
| 1981 | 96 |
| 1982 | 125 |
| 1983 | 134 |
| 1984 | 152 |
| 1985 | 158 |
| 1986 | 143 |
| 1987 | 148 |
| 1988 | 195 |
| 1989 | 143 |
| 1990 | 179 |
| 1991 | 158 |
| 1992 | 166 |
| 1993 | 147 |
| 1994 | 146 |
| 1995 | 209 |
| 1996 | 178 |
| 1997 | 189 |
| 1998 | 182 |
| 1999 | 186 |
| 2000 | 231 |
| 2001 | 278 |
| 2002 | 214 |
| 2003 | 245 |
| 2004 | 256 |
| 2005 | 291 |
| 2006 | 331 |
| 2007 | 350 |
| 2008 | 421 |
| 2009 | 397 |
| 2010 | 440 |
| 2011 | 468 |
| 2012 | 451 |
| 2013 | 489 |
| 2014 | 422 |
| 2015 | 401 |
| 2016 | 409 |
| 2017 | 423 |
| 2018 | 431 |
| 2019 | 450 |
| 2020 | 394 |
| 2021 | 232 |
| 2022 | 134 |
| 2023 | 112 |
| 2024 | 24 |