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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1949 | 1 |
| 1954 | 5 |
| 1955 | 1 |
| 1956 | 1 |
| 1957 | 5 |
| 1958 | 9 |
| 1959 | 8 |
| 1960 | 11 |
| 1961 | 19 |
| 1962 | 12 |
| 1963 | 13 |
| 1964 | 18 |
| 1965 | 11 |
| 1966 | 1 |
| 1967 | 1 |
| 1969 | 4 |
| 1970 | 38 |
| 1971 | 139 |
| 1972 | 154 |
| 1973 | 185 |
| 1974 | 136 |
| 1975 | 91 |
| 1976 | 89 |
| 1977 | 88 |
| 1978 | 70 |
| 1979 | 82 |
| 1980 | 77 |
| 1981 | 62 |
| 1982 | 73 |
| 1983 | 61 |
| 1984 | 56 |
| 1985 | 55 |
| 1986 | 55 |
| 1987 | 71 |
| 1988 | 58 |
| 1989 | 60 |
| 1990 | 75 |
| 1991 | 60 |
| 1992 | 62 |
| 1993 | 68 |
| 1994 | 79 |
| 1995 | 62 |
| 1996 | 59 |
| 1997 | 64 |
| 1998 | 67 |
| 1999 | 55 |
| 2000 | 52 |
| 2001 | 45 |
| 2002 | 64 |
| 2003 | 52 |
| 2004 | 72 |
| 2005 | 68 |
| 2006 | 73 |
| 2007 | 72 |
| 2008 | 75 |
| 2009 | 56 |
| 2010 | 67 |
| 2011 | 87 |
| 2012 | 96 |
| 2013 | 102 |
| 2014 | 113 |
| 2015 | 99 |
| 2016 | 118 |
| 2017 | 114 |
| 2018 | 80 |
| 2019 | 91 |
| 2020 | 79 |
| 2021 | 70 |
| 2022 | 35 |
| 2023 | 29 |
| 2024 | 9 |