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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1949 | 1 |
| 1952 | 4 |
| 1954 | 2 |
| 1955 | 1 |
| 1957 | 3 |
| 1958 | 4 |
| 1959 | 1 |
| 1960 | 2 |
| 1962 | 3 |
| 1963 | 2 |
| 1964 | 2 |
| 1965 | 3 |
| 1966 | 21 |
| 1967 | 76 |
| 1968 | 81 |
| 1969 | 83 |
| 1970 | 102 |
| 1971 | 126 |
| 1972 | 114 |
| 1973 | 136 |
| 1974 | 108 |
| 1975 | 82 |
| 1976 | 77 |
| 1977 | 59 |
| 1978 | 82 |
| 1979 | 75 |
| 1980 | 68 |
| 1981 | 71 |
| 1982 | 69 |
| 1983 | 56 |
| 1984 | 68 |
| 1985 | 74 |
| 1986 | 65 |
| 1987 | 54 |
| 1988 | 72 |
| 1989 | 52 |
| 1990 | 82 |
| 1991 | 102 |
| 1992 | 76 |
| 1993 | 80 |
| 1994 | 103 |
| 1995 | 71 |
| 1996 | 94 |
| 1997 | 72 |
| 1998 | 80 |
| 1999 | 85 |
| 2000 | 92 |
| 2001 | 79 |
| 2002 | 92 |
| 2003 | 96 |
| 2004 | 101 |
| 2005 | 118 |
| 2006 | 118 |
| 2007 | 91 |
| 2008 | 135 |
| 2009 | 148 |
| 2010 | 164 |
| 2011 | 139 |
| 2012 | 129 |
| 2013 | 156 |
| 2014 | 196 |
| 2015 | 190 |
| 2016 | 217 |
| 2017 | 231 |
| 2018 | 205 |
| 2019 | 231 |
| 2020 | 228 |
| 2021 | 154 |
| 2022 | 96 |
| 2023 | 54 |
| 2024 | 19 |