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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 10 |
| 1968 | 27 |
| 1969 | 44 |
| 1970 | 20 |
| 1971 | 36 |
| 1972 | 48 |
| 1973 | 61 |
| 1974 | 64 |
| 1975 | 87 |
| 1976 | 62 |
| 1977 | 79 |
| 1978 | 67 |
| 1979 | 104 |
| 1980 | 95 |
| 1981 | 107 |
| 1982 | 100 |
| 1983 | 152 |
| 1984 | 152 |
| 1985 | 188 |
| 1986 | 179 |
| 1987 | 174 |
| 1988 | 200 |
| 1989 | 195 |
| 1990 | 189 |
| 1991 | 205 |
| 1992 | 213 |
| 1993 | 207 |
| 1994 | 213 |
| 1995 | 187 |
| 1996 | 186 |
| 1997 | 167 |
| 1998 | 191 |
| 1999 | 200 |
| 2000 | 200 |
| 2001 | 181 |
| 2002 | 216 |
| 2003 | 187 |
| 2004 | 211 |
| 2005 | 222 |
| 2006 | 253 |
| 2007 | 251 |
| 2008 | 218 |
| 2009 | 216 |
| 2010 | 214 |
| 2011 | 218 |
| 2012 | 208 |
| 2013 | 200 |
| 2014 | 203 |
| 2015 | 177 |
| 2016 | 166 |
| 2017 | 168 |
| 2018 | 178 |
| 2019 | 146 |
| 2020 | 141 |
| 2021 | 138 |
| 2022 | 124 |
| 2023 | 85 |
| 2024 | 112 |
| 2025 | 82 |
| 2026 | 2 |