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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 1 |
| 1969 | 4 |
| 1970 | 16 |
| 1971 | 69 |
| 1972 | 76 |
| 1973 | 80 |
| 1974 | 66 |
| 1975 | 88 |
| 1976 | 77 |
| 1977 | 86 |
| 1978 | 105 |
| 1979 | 97 |
| 1980 | 116 |
| 1981 | 82 |
| 1982 | 70 |
| 1983 | 98 |
| 1984 | 84 |
| 1985 | 93 |
| 1986 | 86 |
| 1987 | 100 |
| 1988 | 92 |
| 1989 | 75 |
| 1990 | 99 |
| 1991 | 96 |
| 1992 | 100 |
| 1993 | 121 |
| 1994 | 111 |
| 1995 | 124 |
| 1996 | 191 |
| 1997 | 137 |
| 1998 | 185 |
| 1999 | 227 |
| 2000 | 245 |
| 2001 | 214 |
| 2002 | 224 |
| 2003 | 236 |
| 2004 | 249 |
| 2005 | 257 |
| 2006 | 274 |
| 2007 | 269 |
| 2008 | 259 |
| 2009 | 223 |
| 2010 | 262 |
| 2011 | 315 |
| 2012 | 342 |
| 2013 | 321 |
| 2014 | 267 |
| 2015 | 314 |
| 2016 | 289 |
| 2017 | 252 |
| 2018 | 272 |
| 2019 | 248 |
| 2020 | 206 |
| 2021 | 135 |
| 2022 | 75 |
| 2023 | 32 |
| 2024 | 124 |
| 2025 | 136 |