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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1949 | 10 |
| 1950 | 29 |
| 1951 | 44 |
| 1952 | 28 |
| 1953 | 43 |
| 1954 | 55 |
| 1955 | 63 |
| 1956 | 89 |
| 1957 | 69 |
| 1958 | 93 |
| 1959 | 76 |
| 1960 | 65 |
| 1961 | 146 |
| 1962 | 214 |
| 1963 | 183 |
| 1964 | 218 |
| 1965 | 172 |
| 1966 | 147 |
| 1967 | 208 |
| 1968 | 243 |
| 1969 | 255 |
| 1970 | 237 |
| 1971 | 247 |
| 1972 | 207 |
| 1973 | 225 |
| 1974 | 261 |
| 1975 | 161 |
| 1976 | 131 |
| 1977 | 129 |
| 1978 | 115 |
| 1979 | 114 |
| 1980 | 121 |
| 1981 | 105 |
| 1982 | 86 |
| 1983 | 90 |
| 1984 | 85 |
| 1985 | 89 |
| 1986 | 114 |
| 1987 | 95 |
| 1988 | 100 |
| 1989 | 106 |
| 1990 | 125 |
| 1991 | 115 |
| 1992 | 109 |
| 1993 | 108 |
| 1994 | 116 |
| 1995 | 92 |
| 1996 | 86 |
| 1997 | 100 |
| 1998 | 102 |
| 1999 | 86 |
| 2000 | 101 |
| 2001 | 87 |
| 2002 | 80 |
| 2003 | 87 |
| 2004 | 75 |
| 2005 | 62 |
| 2006 | 88 |
| 2007 | 81 |
| 2008 | 88 |
| 2009 | 79 |
| 2010 | 61 |
| 2011 | 59 |
| 2012 | 66 |
| 2013 | 65 |
| 2014 | 61 |
| 2015 | 67 |
| 2016 | 60 |
| 2017 | 39 |
| 2018 | 61 |
| 2019 | 48 |
| 2020 | 42 |
| 2021 | 27 |
| 2022 | 54 |
| 2023 | 30 |
| 2024 | 27 |