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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1957 | 2 |
| 1961 | 2 |
| 1962 | 1 |
| 1965 | 3 |
| 1966 | 9 |
| 1967 | 6 |
| 1968 | 7 |
| 1969 | 13 |
| 1970 | 19 |
| 1971 | 24 |
| 1972 | 17 |
| 1973 | 13 |
| 1974 | 22 |
| 1975 | 26 |
| 1976 | 16 |
| 1977 | 25 |
| 1978 | 18 |
| 1979 | 15 |
| 1980 | 20 |
| 1981 | 29 |
| 1982 | 34 |
| 1983 | 41 |
| 1984 | 36 |
| 1985 | 43 |
| 1986 | 42 |
| 1987 | 38 |
| 1988 | 43 |
| 1989 | 76 |
| 1990 | 64 |
| 1991 | 81 |
| 1992 | 75 |
| 1993 | 109 |
| 1994 | 84 |
| 1995 | 99 |
| 1996 | 130 |
| 1997 | 103 |
| 1998 | 136 |
| 1999 | 146 |
| 2000 | 144 |
| 2001 | 138 |
| 2002 | 136 |
| 2003 | 183 |
| 2004 | 137 |
| 2005 | 118 |
| 2006 | 129 |
| 2007 | 155 |
| 2008 | 158 |
| 2009 | 187 |
| 2010 | 146 |
| 2011 | 165 |
| 2012 | 136 |
| 2013 | 190 |
| 2014 | 157 |
| 2015 | 149 |
| 2016 | 142 |
| 2017 | 160 |
| 2018 | 180 |
| 2019 | 164 |
| 2020 | 171 |
| 2021 | 162 |
| 2022 | 88 |
| 2023 | 49 |
| 2024 | 22 |