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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1970 | 1 |
| 1971 | 1 |
| 1972 | 11 |
| 1973 | 32 |
| 1974 | 48 |
| 1975 | 39 |
| 1976 | 42 |
| 1977 | 49 |
| 1978 | 52 |
| 1979 | 57 |
| 1980 | 35 |
| 1981 | 43 |
| 1982 | 64 |
| 1983 | 49 |
| 1984 | 40 |
| 1985 | 65 |
| 1986 | 40 |
| 1987 | 54 |
| 1988 | 72 |
| 1989 | 87 |
| 1990 | 86 |
| 1991 | 103 |
| 1992 | 103 |
| 1993 | 115 |
| 1994 | 135 |
| 1995 | 138 |
| 1996 | 132 |
| 1997 | 191 |
| 1998 | 145 |
| 1999 | 175 |
| 2000 | 165 |
| 2001 | 177 |
| 2002 | 199 |
| 2003 | 248 |
| 2004 | 259 |
| 2005 | 215 |
| 2006 | 226 |
| 2007 | 269 |
| 2008 | 270 |
| 2009 | 360 |
| 2010 | 325 |
| 2011 | 331 |
| 2012 | 403 |
| 2013 | 402 |
| 2014 | 362 |
| 2015 | 351 |
| 2016 | 263 |
| 2017 | 243 |
| 2018 | 259 |
| 2019 | 231 |
| 2020 | 205 |
| 2021 | 104 |
| 2022 | 15 |
| 2023 | 13 |
| 2024 | 25 |