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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 1 |
| 1964 | 2 |
| 1966 | 12 |
| 1967 | 28 |
| 1968 | 45 |
| 1969 | 43 |
| 1970 | 86 |
| 1971 | 100 |
| 1972 | 107 |
| 1973 | 120 |
| 1974 | 143 |
| 1975 | 174 |
| 1976 | 203 |
| 1977 | 185 |
| 1978 | 199 |
| 1979 | 211 |
| 1980 | 250 |
| 1981 | 217 |
| 1982 | 223 |
| 1983 | 251 |
| 1984 | 343 |
| 1985 | 469 |
| 1986 | 490 |
| 1987 | 456 |
| 1988 | 465 |
| 1989 | 521 |
| 1990 | 670 |
| 1991 | 722 |
| 1992 | 775 |
| 1993 | 819 |
| 1994 | 904 |
| 1995 | 987 |
| 1996 | 983 |
| 1997 | 907 |
| 1998 | 964 |
| 1999 | 1068 |
| 2000 | 1221 |
| 2001 | 1290 |
| 2002 | 1358 |
| 2003 | 1433 |
| 2004 | 1370 |
| 2005 | 1500 |
| 2006 | 1531 |
| 2007 | 1599 |
| 2008 | 1890 |
| 2009 | 2110 |
| 2010 | 2259 |
| 2011 | 2342 |
| 2012 | 2514 |
| 2013 | 2613 |
| 2014 | 2671 |
| 2015 | 2709 |
| 2016 | 3036 |
| 2017 | 3428 |
| 2018 | 3684 |
| 2019 | 3977 |
| 2020 | 4313 |
| 2021 | 4193 |
| 2022 | 3791 |
| 2023 | 3245 |
| 2024 | 1114 |