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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 30 |
| 1964 | 33 |
| 1965 | 49 |
| 1966 | 58 |
| 1967 | 33 |
| 1968 | 42 |
| 1969 | 47 |
| 1970 | 51 |
| 1971 | 45 |
| 1972 | 54 |
| 1973 | 46 |
| 1975 | 4 |
| 1976 | 9 |
| 1977 | 8 |
| 1978 | 53 |
| 1979 | 57 |
| 1980 | 63 |
| 1981 | 64 |
| 1982 | 68 |
| 1983 | 59 |
| 1984 | 76 |
| 1985 | 79 |
| 1986 | 81 |
| 1987 | 105 |
| 1988 | 93 |
| 1989 | 120 |
| 1990 | 111 |
| 1991 | 110 |
| 1992 | 114 |
| 1993 | 142 |
| 1994 | 137 |
| 1995 | 146 |
| 1996 | 146 |
| 1997 | 132 |
| 1998 | 139 |
| 1999 | 149 |
| 2000 | 116 |
| 2001 | 105 |
| 2002 | 129 |
| 2003 | 124 |
| 2004 | 158 |
| 2005 | 158 |
| 2006 | 138 |
| 2007 | 117 |
| 2008 | 130 |
| 2009 | 162 |
| 2010 | 136 |
| 2011 | 140 |
| 2012 | 134 |
| 2013 | 141 |
| 2014 | 146 |
| 2015 | 154 |
| 2016 | 138 |
| 2017 | 192 |
| 2018 | 210 |
| 2019 | 212 |
| 2020 | 223 |
| 2021 | 202 |
| 2022 | 194 |
| 2023 | 154 |
| 2024 | 76 |