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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1953 | 1 |
| 1964 | 1 |
| 1965 | 36 |
| 1966 | 78 |
| 1967 | 136 |
| 1968 | 191 |
| 1969 | 227 |
| 1970 | 264 |
| 1971 | 246 |
| 1972 | 185 |
| 1973 | 222 |
| 1974 | 218 |
| 1975 | 230 |
| 1976 | 272 |
| 1977 | 252 |
| 1978 | 210 |
| 1979 | 233 |
| 1980 | 199 |
| 1981 | 190 |
| 1982 | 190 |
| 1983 | 149 |
| 1984 | 148 |
| 1985 | 133 |
| 1986 | 180 |
| 1987 | 147 |
| 1988 | 120 |
| 1989 | 180 |
| 1990 | 157 |
| 1991 | 123 |
| 1992 | 127 |
| 1993 | 107 |
| 1994 | 93 |
| 1995 | 160 |
| 1996 | 217 |
| 1997 | 163 |
| 1998 | 189 |
| 1999 | 188 |
| 2000 | 189 |
| 2001 | 161 |
| 2002 | 187 |
| 2003 | 143 |
| 2004 | 138 |
| 2005 | 152 |
| 2006 | 152 |
| 2007 | 143 |
| 2008 | 135 |
| 2009 | 142 |
| 2010 | 144 |
| 2011 | 153 |
| 2012 | 168 |
| 2013 | 186 |
| 2014 | 154 |
| 2015 | 155 |
| 2016 | 128 |
| 2017 | 111 |
| 2018 | 88 |
| 2019 | 87 |
| 2020 | 85 |
| 2021 | 73 |
| 2022 | 71 |
| 2023 | 59 |
| 2024 | 53 |
| 2025 | 69 |