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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 1 |
| 1969 | 1 |
| 1970 | 1 |
| 1971 | 1 |
| 1972 | 3 |
| 1973 | 1 |
| 1974 | 2 |
| 1975 | 23 |
| 1976 | 24 |
| 1977 | 32 |
| 1978 | 37 |
| 1979 | 23 |
| 1980 | 44 |
| 1981 | 51 |
| 1982 | 62 |
| 1983 | 54 |
| 1984 | 67 |
| 1985 | 55 |
| 1986 | 50 |
| 1987 | 59 |
| 1988 | 62 |
| 1989 | 79 |
| 1990 | 83 |
| 1991 | 108 |
| 1992 | 88 |
| 1993 | 97 |
| 1994 | 96 |
| 1995 | 95 |
| 1996 | 119 |
| 1997 | 123 |
| 1998 | 117 |
| 1999 | 148 |
| 2000 | 142 |
| 2001 | 172 |
| 2002 | 149 |
| 2003 | 161 |
| 2004 | 184 |
| 2005 | 202 |
| 2006 | 190 |
| 2007 | 246 |
| 2008 | 247 |
| 2009 | 276 |
| 2010 | 303 |
| 2011 | 340 |
| 2012 | 310 |
| 2013 | 318 |
| 2014 | 327 |
| 2015 | 349 |
| 2016 | 250 |
| 2017 | 186 |
| 2018 | 285 |
| 2019 | 372 |
| 2020 | 354 |
| 2021 | 349 |
| 2022 | 315 |
| 2023 | 301 |
| 2024 | 163 |
| 2025 | 23 |