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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1951 | 1 |
| 1955 | 1 |
| 1956 | 1 |
| 1957 | 8 |
| 1958 | 15 |
| 1959 | 7 |
| 1960 | 5 |
| 1961 | 14 |
| 1962 | 16 |
| 1963 | 22 |
| 1964 | 15 |
| 1965 | 7 |
| 1968 | 2 |
| 1970 | 1 |
| 1971 | 3 |
| 1972 | 39 |
| 1973 | 125 |
| 1974 | 163 |
| 1975 | 126 |
| 1976 | 116 |
| 1977 | 110 |
| 1978 | 97 |
| 1979 | 123 |
| 1980 | 102 |
| 1981 | 82 |
| 1982 | 99 |
| 1983 | 90 |
| 1984 | 125 |
| 1985 | 99 |
| 1986 | 115 |
| 1987 | 112 |
| 1988 | 119 |
| 1989 | 120 |
| 1990 | 147 |
| 1991 | 145 |
| 1992 | 138 |
| 1993 | 154 |
| 1994 | 152 |
| 1995 | 123 |
| 1996 | 143 |
| 1997 | 135 |
| 1998 | 120 |
| 1999 | 141 |
| 2000 | 114 |
| 2001 | 109 |
| 2002 | 99 |
| 2003 | 102 |
| 2004 | 140 |
| 2005 | 126 |
| 2006 | 129 |
| 2007 | 142 |
| 2008 | 142 |
| 2009 | 133 |
| 2010 | 169 |
| 2011 | 169 |
| 2012 | 162 |
| 2013 | 157 |
| 2014 | 146 |
| 2015 | 144 |
| 2016 | 134 |
| 2017 | 126 |
| 2018 | 125 |
| 2019 | 173 |
| 2020 | 147 |
| 2021 | 207 |
| 2022 | 263 |
| 2023 | 236 |
| 2024 | 88 |