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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1953 | 1 |
| 1955 | 3 |
| 1958 | 2 |
| 1964 | 1 |
| 1965 | 1 |
| 1966 | 23 |
| 1967 | 24 |
| 1968 | 27 |
| 1969 | 22 |
| 1970 | 26 |
| 1971 | 25 |
| 1972 | 23 |
| 1973 | 36 |
| 1974 | 26 |
| 1975 | 39 |
| 1976 | 35 |
| 1977 | 42 |
| 1978 | 35 |
| 1979 | 47 |
| 1980 | 39 |
| 1981 | 36 |
| 1982 | 41 |
| 1983 | 50 |
| 1984 | 52 |
| 1985 | 47 |
| 1986 | 85 |
| 1987 | 65 |
| 1988 | 62 |
| 1989 | 83 |
| 1990 | 75 |
| 1991 | 86 |
| 1992 | 125 |
| 1993 | 162 |
| 1994 | 251 |
| 1995 | 239 |
| 1996 | 243 |
| 1997 | 230 |
| 1998 | 206 |
| 1999 | 218 |
| 2000 | 215 |
| 2001 | 176 |
| 2002 | 135 |
| 2003 | 159 |
| 2004 | 171 |
| 2005 | 171 |
| 2006 | 178 |
| 2007 | 170 |
| 2008 | 170 |
| 2009 | 166 |
| 2010 | 158 |
| 2011 | 149 |
| 2012 | 150 |
| 2013 | 179 |
| 2014 | 144 |
| 2015 | 150 |
| 2016 | 148 |
| 2017 | 116 |
| 2018 | 117 |
| 2019 | 88 |
| 2020 | 101 |
| 2021 | 68 |
| 2022 | 31 |
| 2023 | 12 |
| 2024 | 4 |