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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1953 | 3 |
| 1954 | 1 |
| 1956 | 5 |
| 1957 | 2 |
| 1958 | 5 |
| 1959 | 4 |
| 1960 | 1 |
| 1961 | 5 |
| 1962 | 2 |
| 1966 | 1 |
| 1967 | 1 |
| 1968 | 2 |
| 1970 | 1 |
| 1971 | 1 |
| 1972 | 1 |
| 1973 | 4 |
| 1974 | 49 |
| 1975 | 96 |
| 1976 | 134 |
| 1977 | 127 |
| 1978 | 121 |
| 1979 | 128 |
| 1980 | 147 |
| 1981 | 137 |
| 1982 | 164 |
| 1983 | 194 |
| 1984 | 215 |
| 1985 | 200 |
| 1986 | 254 |
| 1987 | 251 |
| 1988 | 212 |
| 1989 | 196 |
| 1990 | 212 |
| 1991 | 149 |
| 1992 | 158 |
| 1993 | 155 |
| 1994 | 145 |
| 1995 | 133 |
| 1996 | 121 |
| 1997 | 118 |
| 1998 | 88 |
| 1999 | 68 |
| 2000 | 78 |
| 2001 | 76 |
| 2002 | 60 |
| 2003 | 68 |
| 2004 | 49 |
| 2005 | 63 |
| 2006 | 68 |
| 2007 | 82 |
| 2008 | 66 |
| 2009 | 53 |
| 2010 | 50 |
| 2011 | 54 |
| 2012 | 63 |
| 2013 | 72 |
| 2014 | 53 |
| 2015 | 53 |
| 2016 | 56 |
| 2017 | 52 |
| 2018 | 39 |
| 2019 | 34 |
| 2020 | 43 |
| 2021 | 25 |
| 2022 | 33 |
| 2023 | 32 |
| 2024 | 12 |