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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1956 | 1 |
| 1958 | 1 |
| 1959 | 1 |
| 1961 | 3 |
| 1962 | 1 |
| 1963 | 4 |
| 1969 | 1 |
| 1970 | 3 |
| 1971 | 1 |
| 1972 | 4 |
| 1973 | 14 |
| 1974 | 4 |
| 1975 | 10 |
| 1976 | 11 |
| 1977 | 21 |
| 1978 | 11 |
| 1979 | 23 |
| 1980 | 20 |
| 1981 | 12 |
| 1982 | 8 |
| 1983 | 15 |
| 1984 | 14 |
| 1985 | 8 |
| 1986 | 8 |
| 1987 | 18 |
| 1988 | 8 |
| 1989 | 12 |
| 1990 | 10 |
| 1991 | 79 |
| 1992 | 98 |
| 1993 | 135 |
| 1994 | 149 |
| 1995 | 155 |
| 1996 | 152 |
| 1997 | 175 |
| 1998 | 170 |
| 1999 | 84 |
| 2000 | 51 |
| 2001 | 56 |
| 2002 | 60 |
| 2003 | 53 |
| 2004 | 67 |
| 2005 | 73 |
| 2006 | 91 |
| 2007 | 106 |
| 2008 | 120 |
| 2009 | 124 |
| 2010 | 137 |
| 2011 | 129 |
| 2012 | 144 |
| 2013 | 137 |
| 2014 | 144 |
| 2015 | 138 |
| 2016 | 180 |
| 2017 | 170 |
| 2018 | 141 |
| 2019 | 171 |
| 2020 | 199 |
| 2021 | 185 |
| 2022 | 135 |
| 2023 | 160 |
| 2024 | 65 |