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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1968 | 32 |
| 1969 | 53 |
| 1970 | 94 |
| 1971 | 58 |
| 1972 | 49 |
| 1973 | 43 |
| 1974 | 44 |
| 1975 | 43 |
| 1976 | 50 |
| 1977 | 44 |
| 1978 | 63 |
| 1979 | 91 |
| 1980 | 106 |
| 1981 | 84 |
| 1982 | 60 |
| 1983 | 66 |
| 1984 | 116 |
| 1985 | 99 |
| 1986 | 155 |
| 1987 | 94 |
| 1988 | 91 |
| 1989 | 91 |
| 1990 | 67 |
| 1991 | 82 |
| 1992 | 103 |
| 1993 | 80 |
| 1994 | 74 |
| 1995 | 80 |
| 1996 | 78 |
| 1997 | 91 |
| 1998 | 101 |
| 1999 | 114 |
| 2000 | 147 |
| 2001 | 132 |
| 2002 | 121 |
| 2003 | 127 |
| 2004 | 123 |
| 2005 | 225 |
| 2006 | 208 |
| 2007 | 197 |
| 2008 | 220 |
| 2009 | 242 |
| 2010 | 229 |
| 2011 | 256 |
| 2012 | 269 |
| 2013 | 235 |
| 2014 | 196 |
| 2015 | 207 |
| 2016 | 193 |
| 2017 | 220 |
| 2018 | 235 |
| 2019 | 214 |
| 2020 | 199 |
| 2021 | 241 |
| 2022 | 210 |
| 2023 | 153 |
| 2024 | 51 |