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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 1 |
| 1966 | 3 |
| 1967 | 14 |
| 1968 | 4 |
| 1969 | 4 |
| 1970 | 10 |
| 1971 | 12 |
| 1972 | 40 |
| 1973 | 116 |
| 1974 | 196 |
| 1975 | 170 |
| 1976 | 121 |
| 1977 | 136 |
| 1978 | 169 |
| 1979 | 222 |
| 1980 | 167 |
| 1981 | 191 |
| 1982 | 267 |
| 1983 | 303 |
| 1984 | 316 |
| 1985 | 332 |
| 1986 | 353 |
| 1987 | 375 |
| 1988 | 414 |
| 1989 | 492 |
| 1990 | 551 |
| 1991 | 638 |
| 1992 | 700 |
| 1993 | 666 |
| 1994 | 685 |
| 1995 | 671 |
| 1996 | 571 |
| 1997 | 743 |
| 1998 | 803 |
| 1999 | 708 |
| 2000 | 784 |
| 2001 | 852 |
| 2002 | 827 |
| 2003 | 944 |
| 2004 | 999 |
| 2005 | 981 |
| 2006 | 1113 |
| 2007 | 1172 |
| 2008 | 1264 |
| 2009 | 1311 |
| 2010 | 1347 |
| 2011 | 1327 |
| 2012 | 1106 |
| 2013 | 1288 |
| 2014 | 1203 |
| 2015 | 1221 |
| 2016 | 1166 |
| 2017 | 1079 |
| 2018 | 936 |
| 2019 | 878 |
| 2020 | 746 |
| 2021 | 458 |
| 2022 | 63 |
| 2023 | 31 |
| 2024 | 537 |
| 2025 | 430 |