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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 2 |
| 1961 | 4 |
| 1962 | 1 |
| 1963 | 1 |
| 1964 | 1 |
| 1965 | 7 |
| 1966 | 18 |
| 1967 | 75 |
| 1968 | 89 |
| 1969 | 163 |
| 1970 | 160 |
| 1971 | 210 |
| 1972 | 223 |
| 1973 | 254 |
| 1974 | 245 |
| 1975 | 287 |
| 1976 | 262 |
| 1977 | 323 |
| 1978 | 252 |
| 1979 | 335 |
| 1980 | 304 |
| 1981 | 367 |
| 1982 | 419 |
| 1983 | 432 |
| 1984 | 541 |
| 1985 | 541 |
| 1986 | 521 |
| 1987 | 639 |
| 1988 | 586 |
| 1989 | 744 |
| 1990 | 1020 |
| 1991 | 797 |
| 1992 | 828 |
| 1993 | 871 |
| 1994 | 932 |
| 1995 | 923 |
| 1996 | 1128 |
| 1997 | 1335 |
| 1998 | 2128 |
| 1999 | 2375 |
| 2000 | 2817 |
| 2001 | 3616 |
| 2002 | 3857 |
| 2003 | 4400 |
| 2004 | 5294 |
| 2005 | 5971 |
| 2006 | 7024 |
| 2007 | 7785 |
| 2008 | 8345 |
| 2009 | 8494 |
| 2010 | 9107 |
| 2011 | 9879 |
| 2012 | 10428 |
| 2013 | 10695 |
| 2014 | 10266 |
| 2015 | 10294 |
| 2016 | 10160 |
| 2017 | 10209 |
| 2018 | 10078 |
| 2019 | 10033 |
| 2020 | 9610 |
| 2021 | 8613 |
| 2022 | 7482 |
| 2023 | 6459 |
| 2024 | 2957 |