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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 9 |
| 1960 | 13 |
| 1961 | 9 |
| 1962 | 10 |
| 1965 | 2 |
| 1966 | 10 |
| 1967 | 11 |
| 1968 | 63 |
| 1969 | 80 |
| 1970 | 65 |
| 1971 | 94 |
| 1972 | 57 |
| 1973 | 76 |
| 1974 | 117 |
| 1975 | 116 |
| 1976 | 99 |
| 1977 | 86 |
| 1978 | 98 |
| 1979 | 132 |
| 1980 | 137 |
| 1981 | 113 |
| 1982 | 106 |
| 1983 | 129 |
| 1984 | 134 |
| 1985 | 107 |
| 1986 | 118 |
| 1987 | 135 |
| 1988 | 177 |
| 1989 | 183 |
| 1990 | 140 |
| 1991 | 149 |
| 1992 | 86 |
| 1993 | 79 |
| 1994 | 58 |
| 1995 | 93 |
| 1996 | 93 |
| 1997 | 143 |
| 1998 | 105 |
| 1999 | 150 |
| 2000 | 159 |
| 2001 | 168 |
| 2002 | 189 |
| 2003 | 230 |
| 2004 | 219 |
| 2005 | 249 |
| 2006 | 266 |
| 2007 | 265 |
| 2008 | 238 |
| 2009 | 159 |
| 2010 | 198 |
| 2011 | 216 |
| 2012 | 217 |
| 2013 | 198 |
| 2014 | 173 |
| 2015 | 186 |
| 2016 | 199 |
| 2017 | 173 |
| 2018 | 151 |
| 2019 | 141 |
| 2020 | 202 |
| 2021 | 90 |
| 2022 | 12 |
| 2023 | 11 |
| 2024 | 24 |
| 2025 | 22 |