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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 2 |
| 1961 | 1 |
| 1965 | 5 |
| 1966 | 10 |
| 1967 | 16 |
| 1968 | 20 |
| 1969 | 27 |
| 1970 | 29 |
| 1971 | 28 |
| 1972 | 22 |
| 1973 | 20 |
| 1974 | 16 |
| 1975 | 20 |
| 1976 | 16 |
| 1977 | 19 |
| 1978 | 12 |
| 1979 | 22 |
| 1980 | 20 |
| 1981 | 12 |
| 1982 | 9 |
| 1983 | 5 |
| 1984 | 20 |
| 1985 | 15 |
| 1986 | 18 |
| 1987 | 20 |
| 1988 | 17 |
| 1989 | 20 |
| 1990 | 29 |
| 1991 | 39 |
| 1992 | 42 |
| 1993 | 42 |
| 1994 | 32 |
| 1995 | 32 |
| 1996 | 28 |
| 1997 | 35 |
| 1998 | 47 |
| 1999 | 42 |
| 2000 | 46 |
| 2001 | 51 |
| 2002 | 60 |
| 2003 | 77 |
| 2004 | 57 |
| 2005 | 66 |
| 2006 | 84 |
| 2007 | 86 |
| 2008 | 99 |
| 2009 | 103 |
| 2010 | 117 |
| 2011 | 152 |
| 2012 | 151 |
| 2013 | 143 |
| 2014 | 164 |
| 2015 | 169 |
| 2016 | 166 |
| 2017 | 184 |
| 2018 | 228 |
| 2019 | 206 |
| 2020 | 201 |
| 2021 | 196 |
| 2022 | 148 |
| 2023 | 121 |
| 2024 | 55 |