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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1953 | 1 |
| 1955 | 1 |
| 1961 | 1 |
| 1965 | 4 |
| 1966 | 5 |
| 1967 | 5 |
| 1968 | 5 |
| 1969 | 11 |
| 1970 | 15 |
| 1971 | 20 |
| 1972 | 13 |
| 1973 | 17 |
| 1974 | 18 |
| 1975 | 18 |
| 1976 | 14 |
| 1977 | 25 |
| 1978 | 23 |
| 1979 | 26 |
| 1980 | 38 |
| 1981 | 18 |
| 1982 | 42 |
| 1983 | 18 |
| 1984 | 35 |
| 1985 | 38 |
| 1986 | 43 |
| 1987 | 23 |
| 1988 | 26 |
| 1989 | 24 |
| 1990 | 37 |
| 1991 | 34 |
| 1992 | 27 |
| 1993 | 43 |
| 1994 | 35 |
| 1995 | 37 |
| 1996 | 54 |
| 1997 | 56 |
| 1998 | 51 |
| 1999 | 61 |
| 2000 | 61 |
| 2001 | 64 |
| 2002 | 71 |
| 2003 | 111 |
| 2004 | 89 |
| 2005 | 92 |
| 2006 | 91 |
| 2007 | 88 |
| 2008 | 115 |
| 2009 | 112 |
| 2010 | 107 |
| 2011 | 98 |
| 2012 | 122 |
| 2013 | 160 |
| 2014 | 149 |
| 2015 | 150 |
| 2016 | 120 |
| 2017 | 144 |
| 2018 | 143 |
| 2019 | 145 |
| 2020 | 164 |
| 2021 | 184 |
| 2022 | 176 |
| 2023 | 162 |
| 2024 | 51 |