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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 1 |
| 1964 | 6 |
| 1965 | 10 |
| 1966 | 22 |
| 1967 | 48 |
| 1968 | 72 |
| 1969 | 60 |
| 1970 | 51 |
| 1971 | 66 |
| 1972 | 53 |
| 1973 | 51 |
| 1974 | 67 |
| 1975 | 66 |
| 1976 | 51 |
| 1977 | 57 |
| 1978 | 76 |
| 1979 | 77 |
| 1980 | 60 |
| 1981 | 79 |
| 1982 | 80 |
| 1983 | 82 |
| 1984 | 99 |
| 1985 | 108 |
| 1986 | 102 |
| 1987 | 95 |
| 1988 | 118 |
| 1989 | 105 |
| 1990 | 106 |
| 1991 | 116 |
| 1992 | 138 |
| 1993 | 95 |
| 1994 | 89 |
| 1995 | 116 |
| 1996 | 138 |
| 1997 | 154 |
| 1998 | 134 |
| 1999 | 114 |
| 2000 | 136 |
| 2001 | 156 |
| 2002 | 144 |
| 2003 | 128 |
| 2004 | 170 |
| 2005 | 215 |
| 2006 | 244 |
| 2007 | 268 |
| 2008 | 266 |
| 2009 | 232 |
| 2010 | 238 |
| 2011 | 303 |
| 2012 | 296 |
| 2013 | 308 |
| 2014 | 283 |
| 2015 | 301 |
| 2016 | 349 |
| 2017 | 318 |
| 2018 | 331 |
| 2019 | 374 |
| 2020 | 321 |
| 2021 | 200 |
| 2022 | 22 |
| 2023 | 1 |
| 2024 | 2 |