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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1953 | 2 |
| 1954 | 1 |
| 1955 | 2 |
| 1956 | 1 |
| 1957 | 2 |
| 1958 | 1 |
| 1959 | 3 |
| 1960 | 12 |
| 1961 | 6 |
| 1962 | 4 |
| 1968 | 4 |
| 1969 | 2 |
| 1970 | 5 |
| 1971 | 6 |
| 1973 | 4 |
| 1974 | 4 |
| 1975 | 1 |
| 1976 | 10 |
| 1977 | 3 |
| 1978 | 3 |
| 1979 | 7 |
| 1980 | 11 |
| 1981 | 27 |
| 1982 | 36 |
| 1983 | 24 |
| 1984 | 37 |
| 1985 | 33 |
| 1986 | 33 |
| 1987 | 33 |
| 1988 | 44 |
| 1989 | 39 |
| 1990 | 39 |
| 1991 | 63 |
| 1992 | 68 |
| 1993 | 95 |
| 1994 | 69 |
| 1995 | 74 |
| 1996 | 83 |
| 1997 | 94 |
| 1998 | 83 |
| 1999 | 105 |
| 2000 | 117 |
| 2001 | 126 |
| 2002 | 115 |
| 2003 | 130 |
| 2004 | 158 |
| 2005 | 153 |
| 2006 | 152 |
| 2007 | 185 |
| 2008 | 130 |
| 2009 | 140 |
| 2010 | 160 |
| 2011 | 178 |
| 2012 | 223 |
| 2013 | 222 |
| 2014 | 233 |
| 2015 | 258 |
| 2016 | 230 |
| 2017 | 236 |
| 2018 | 221 |
| 2019 | 206 |
| 2020 | 180 |
| 2021 | 112 |
| 2022 | 54 |
| 2023 | 29 |
| 2024 | 10 |