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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1965 | 9 |
| 1966 | 15 |
| 1967 | 19 |
| 1968 | 34 |
| 1969 | 52 |
| 1970 | 52 |
| 1971 | 68 |
| 1972 | 92 |
| 1973 | 66 |
| 1974 | 98 |
| 1975 | 117 |
| 1976 | 127 |
| 1977 | 157 |
| 1978 | 162 |
| 1979 | 203 |
| 1980 | 201 |
| 1981 | 136 |
| 1982 | 255 |
| 1983 | 285 |
| 1984 | 245 |
| 1985 | 247 |
| 1986 | 260 |
| 1987 | 247 |
| 1988 | 224 |
| 1989 | 188 |
| 1990 | 173 |
| 1991 | 173 |
| 1992 | 224 |
| 1993 | 193 |
| 1994 | 198 |
| 1995 | 180 |
| 1996 | 159 |
| 1997 | 136 |
| 1998 | 138 |
| 1999 | 187 |
| 2000 | 164 |
| 2001 | 146 |
| 2002 | 139 |
| 2003 | 144 |
| 2004 | 154 |
| 2005 | 176 |
| 2006 | 184 |
| 2007 | 171 |
| 2008 | 179 |
| 2009 | 184 |
| 2010 | 205 |
| 2011 | 227 |
| 2012 | 208 |
| 2013 | 217 |
| 2014 | 211 |
| 2015 | 199 |
| 2016 | 219 |
| 2017 | 188 |
| 2018 | 242 |
| 2019 | 246 |
| 2020 | 182 |
| 2021 | 121 |
| 2022 | 12 |
| 2023 | 2 |
| 2024 | 0 |