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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 1 |
| 1964 | 3 |
| 1965 | 3 |
| 1966 | 14 |
| 1967 | 23 |
| 1968 | 36 |
| 1969 | 1 |
| 1970 | 1 |
| 1971 | 3 |
| 1972 | 1 |
| 1973 | 19 |
| 1974 | 27 |
| 1975 | 152 |
| 1976 | 240 |
| 1977 | 246 |
| 1978 | 268 |
| 1979 | 257 |
| 1980 | 272 |
| 1981 | 224 |
| 1982 | 304 |
| 1983 | 389 |
| 1984 | 418 |
| 1985 | 327 |
| 1986 | 314 |
| 1987 | 428 |
| 1988 | 554 |
| 1989 | 700 |
| 1990 | 904 |
| 1991 | 958 |
| 1992 | 883 |
| 1993 | 959 |
| 1994 | 1073 |
| 1995 | 895 |
| 1996 | 835 |
| 1997 | 954 |
| 1998 | 1039 |
| 1999 | 1024 |
| 2000 | 1157 |
| 2001 | 1249 |
| 2002 | 1192 |
| 2003 | 1133 |
| 2004 | 1648 |
| 2005 | 1819 |
| 2006 | 2038 |
| 2007 | 2277 |
| 2008 | 2408 |
| 2009 | 2545 |
| 2010 | 2645 |
| 2011 | 2963 |
| 2012 | 3063 |
| 2013 | 3337 |
| 2014 | 3215 |
| 2015 | 3218 |
| 2016 | 3057 |
| 2017 | 3003 |
| 2018 | 3219 |
| 2019 | 3088 |
| 2020 | 1959 |
| 2021 | 1033 |
| 2022 | 872 |
| 2023 | 846 |
| 2024 | 847 |