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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 1 |
| 1967 | 1 |
| 1971 | 2 |
| 1972 | 32 |
| 1973 | 115 |
| 1974 | 167 |
| 1975 | 138 |
| 1976 | 243 |
| 1977 | 367 |
| 1978 | 346 |
| 1979 | 355 |
| 1980 | 237 |
| 1981 | 234 |
| 1982 | 254 |
| 1983 | 210 |
| 1984 | 248 |
| 1985 | 230 |
| 1986 | 230 |
| 1987 | 242 |
| 1988 | 269 |
| 1989 | 323 |
| 1990 | 365 |
| 1991 | 430 |
| 1992 | 405 |
| 1993 | 384 |
| 1994 | 401 |
| 1995 | 453 |
| 1996 | 544 |
| 1997 | 608 |
| 1998 | 677 |
| 1999 | 641 |
| 2000 | 814 |
| 2001 | 930 |
| 2002 | 870 |
| 2003 | 943 |
| 2004 | 992 |
| 2005 | 945 |
| 2006 | 942 |
| 2007 | 935 |
| 2008 | 976 |
| 2009 | 1027 |
| 2010 | 1037 |
| 2011 | 1010 |
| 2012 | 1019 |
| 2013 | 939 |
| 2014 | 866 |
| 2015 | 818 |
| 2016 | 789 |
| 2017 | 731 |
| 2018 | 613 |
| 2019 | 644 |
| 2020 | 642 |
| 2021 | 567 |
| 2022 | 409 |
| 2023 | 360 |
| 2024 | 574 |
| 2025 | 343 |