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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1968 | 1 |
| 1972 | 1 |
| 1976 | 1 |
| 1977 | 21 |
| 1978 | 81 |
| 1979 | 78 |
| 1980 | 130 |
| 1981 | 133 |
| 1982 | 147 |
| 1983 | 111 |
| 1984 | 101 |
| 1985 | 111 |
| 1986 | 128 |
| 1987 | 142 |
| 1988 | 197 |
| 1989 | 267 |
| 1990 | 266 |
| 1991 | 240 |
| 1992 | 230 |
| 1993 | 218 |
| 1994 | 193 |
| 1995 | 192 |
| 1996 | 133 |
| 1997 | 135 |
| 1998 | 138 |
| 1999 | 128 |
| 2000 | 133 |
| 2001 | 113 |
| 2002 | 98 |
| 2003 | 132 |
| 2004 | 135 |
| 2005 | 196 |
| 2006 | 202 |
| 2007 | 195 |
| 2008 | 257 |
| 2009 | 295 |
| 2010 | 331 |
| 2011 | 371 |
| 2012 | 387 |
| 2013 | 422 |
| 2014 | 434 |
| 2015 | 383 |
| 2016 | 337 |
| 2017 | 338 |
| 2018 | 305 |
| 2019 | 259 |
| 2020 | 318 |
| 2021 | 344 |
| 2022 | 111 |
| 2023 | 63 |
| 2024 | 458 |
| 2025 | 277 |