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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 2 |
| 1948 | 2 |
| 1949 | 5 |
| 1950 | 3 |
| 1951 | 3 |
| 1952 | 3 |
| 1953 | 4 |
| 1954 | 6 |
| 1955 | 6 |
| 1956 | 9 |
| 1957 | 6 |
| 1958 | 7 |
| 1959 | 8 |
| 1960 | 5 |
| 1961 | 10 |
| 1962 | 11 |
| 1963 | 89 |
| 1964 | 193 |
| 1965 | 145 |
| 1966 | 129 |
| 1967 | 145 |
| 1968 | 209 |
| 1969 | 239 |
| 1970 | 261 |
| 1971 | 251 |
| 1972 | 252 |
| 1973 | 253 |
| 1974 | 267 |
| 1975 | 204 |
| 1976 | 175 |
| 1977 | 180 |
| 1978 | 172 |
| 1979 | 172 |
| 1980 | 152 |
| 1981 | 163 |
| 1982 | 167 |
| 1983 | 203 |
| 1984 | 192 |
| 1985 | 208 |
| 1986 | 209 |
| 1987 | 220 |
| 1988 | 187 |
| 1989 | 240 |
| 1990 | 197 |
| 1991 | 243 |
| 1992 | 200 |
| 1993 | 191 |
| 1994 | 206 |
| 1995 | 198 |
| 1996 | 212 |
| 1997 | 209 |
| 1998 | 220 |
| 1999 | 200 |
| 2000 | 213 |
| 2001 | 196 |
| 2002 | 220 |
| 2003 | 230 |
| 2004 | 187 |
| 2005 | 194 |
| 2006 | 179 |
| 2007 | 180 |
| 2008 | 186 |
| 2009 | 175 |
| 2010 | 148 |
| 2011 | 140 |
| 2012 | 142 |
| 2013 | 110 |
| 2014 | 145 |
| 2015 | 108 |
| 2016 | 104 |
| 2017 | 72 |
| 2018 | 70 |
| 2019 | 68 |
| 2020 | 54 |
| 2021 | 20 |
| 2022 | 10 |
| 2023 | 3 |
| 2024 | 0 |