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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1945 | 1 |
| 1946 | 3 |
| 1947 | 15 |
| 1948 | 7 |
| 1949 | 5 |
| 1950 | 9 |
| 1951 | 15 |
| 1952 | 7 |
| 1953 | 16 |
| 1954 | 12 |
| 1955 | 12 |
| 1956 | 12 |
| 1957 | 14 |
| 1958 | 12 |
| 1959 | 14 |
| 1960 | 12 |
| 1961 | 19 |
| 1962 | 33 |
| 1963 | 66 |
| 1964 | 115 |
| 1965 | 113 |
| 1966 | 109 |
| 1967 | 115 |
| 1968 | 173 |
| 1969 | 247 |
| 1970 | 235 |
| 1971 | 268 |
| 1972 | 278 |
| 1973 | 289 |
| 1974 | 324 |
| 1975 | 270 |
| 1976 | 178 |
| 1977 | 173 |
| 1978 | 141 |
| 1979 | 138 |
| 1980 | 151 |
| 1981 | 145 |
| 1982 | 125 |
| 1983 | 166 |
| 1984 | 166 |
| 1985 | 194 |
| 1986 | 190 |
| 1987 | 184 |
| 1988 | 198 |
| 1989 | 215 |
| 1990 | 234 |
| 1991 | 202 |
| 1992 | 239 |
| 1993 | 215 |
| 1994 | 229 |
| 1995 | 225 |
| 1996 | 130 |
| 1997 | 51 |
| 1998 | 65 |
| 1999 | 79 |
| 2000 | 55 |
| 2001 | 77 |
| 2002 | 72 |
| 2003 | 72 |
| 2004 | 95 |
| 2005 | 98 |
| 2006 | 124 |
| 2007 | 123 |
| 2008 | 140 |
| 2009 | 135 |
| 2010 | 150 |
| 2011 | 165 |
| 2012 | 167 |
| 2013 | 154 |
| 2014 | 132 |
| 2015 | 130 |
| 2016 | 142 |
| 2017 | 131 |
| 2018 | 146 |
| 2019 | 132 |
| 2020 | 131 |
| 2021 | 112 |
| 2022 | 88 |
| 2023 | 42 |
| 2024 | 43 |