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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 4 |
| 1968 | 1 |
| 1969 | 1 |
| 1970 | 1 |
| 1972 | 3 |
| 1973 | 30 |
| 1974 | 43 |
| 1975 | 105 |
| 1976 | 154 |
| 1977 | 149 |
| 1978 | 196 |
| 1979 | 215 |
| 1980 | 197 |
| 1981 | 210 |
| 1982 | 247 |
| 1983 | 246 |
| 1984 | 264 |
| 1985 | 273 |
| 1986 | 337 |
| 1987 | 319 |
| 1988 | 357 |
| 1989 | 513 |
| 1990 | 552 |
| 1991 | 588 |
| 1992 | 624 |
| 1993 | 752 |
| 1994 | 781 |
| 1995 | 868 |
| 1996 | 924 |
| 1997 | 957 |
| 1998 | 999 |
| 1999 | 1135 |
| 2000 | 1202 |
| 2001 | 1465 |
| 2002 | 1587 |
| 2003 | 1804 |
| 2004 | 2038 |
| 2005 | 2194 |
| 2006 | 2330 |
| 2007 | 2567 |
| 2008 | 2872 |
| 2009 | 3030 |
| 2010 | 3025 |
| 2011 | 3085 |
| 2012 | 3389 |
| 2013 | 3326 |
| 2014 | 3255 |
| 2015 | 3394 |
| 2016 | 3105 |
| 2017 | 3294 |
| 2018 | 3477 |
| 2019 | 3249 |
| 2020 | 3184 |
| 2021 | 2473 |
| 2022 | 2061 |
| 2023 | 2100 |
| 2024 | 1369 |
| 2025 | 4 |