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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 2 |
| 1965 | 7 |
| 1966 | 8 |
| 1967 | 14 |
| 1968 | 23 |
| 1969 | 44 |
| 1970 | 30 |
| 1971 | 35 |
| 1972 | 46 |
| 1973 | 58 |
| 1974 | 49 |
| 1975 | 68 |
| 1976 | 57 |
| 1977 | 63 |
| 1978 | 88 |
| 1979 | 97 |
| 1980 | 107 |
| 1981 | 93 |
| 1982 | 110 |
| 1983 | 137 |
| 1984 | 126 |
| 1985 | 127 |
| 1986 | 102 |
| 1987 | 120 |
| 1988 | 131 |
| 1989 | 124 |
| 1990 | 132 |
| 1991 | 103 |
| 1992 | 134 |
| 1993 | 121 |
| 1994 | 136 |
| 1995 | 145 |
| 1996 | 162 |
| 1997 | 148 |
| 1998 | 146 |
| 1999 | 160 |
| 2000 | 173 |
| 2001 | 186 |
| 2002 | 152 |
| 2003 | 173 |
| 2004 | 152 |
| 2005 | 174 |
| 2006 | 173 |
| 2007 | 153 |
| 2008 | 137 |
| 2009 | 158 |
| 2010 | 182 |
| 2011 | 210 |
| 2012 | 192 |
| 2013 | 215 |
| 2014 | 215 |
| 2015 | 243 |
| 2016 | 208 |
| 2017 | 190 |
| 2018 | 202 |
| 2019 | 195 |
| 2020 | 171 |
| 2021 | 143 |
| 2022 | 138 |
| 2023 | 130 |
| 2024 | 193 |
| 2025 | 184 |
| 2026 | 146 |