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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 3 |
| 1965 | 22 |
| 1966 | 45 |
| 1967 | 52 |
| 1968 | 53 |
| 1969 | 76 |
| 1970 | 53 |
| 1971 | 79 |
| 1972 | 90 |
| 1973 | 103 |
| 1974 | 85 |
| 1975 | 113 |
| 1976 | 92 |
| 1977 | 107 |
| 1978 | 121 |
| 1979 | 128 |
| 1980 | 136 |
| 1981 | 135 |
| 1982 | 151 |
| 1983 | 161 |
| 1984 | 157 |
| 1985 | 179 |
| 1986 | 137 |
| 1987 | 129 |
| 1988 | 128 |
| 1989 | 149 |
| 1990 | 153 |
| 1991 | 129 |
| 1992 | 163 |
| 1993 | 137 |
| 1994 | 159 |
| 1995 | 184 |
| 1996 | 164 |
| 1997 | 184 |
| 1998 | 187 |
| 1999 | 206 |
| 2000 | 167 |
| 2001 | 177 |
| 2002 | 180 |
| 2003 | 157 |
| 2004 | 163 |
| 2005 | 181 |
| 2006 | 174 |
| 2007 | 173 |
| 2008 | 194 |
| 2009 | 176 |
| 2010 | 203 |
| 2011 | 217 |
| 2012 | 170 |
| 2013 | 190 |
| 2014 | 192 |
| 2015 | 210 |
| 2016 | 158 |
| 2017 | 200 |
| 2018 | 187 |
| 2019 | 201 |
| 2020 | 190 |
| 2021 | 152 |
| 2022 | 150 |
| 2023 | 175 |
| 2024 | 164 |
| 2025 | 147 |
| 2026 | 95 |