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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1950 | 4 |
| 1951 | 4 |
| 1952 | 5 |
| 1953 | 2 |
| 1954 | 16 |
| 1955 | 32 |
| 1956 | 18 |
| 1957 | 16 |
| 1958 | 18 |
| 1959 | 24 |
| 1960 | 13 |
| 1961 | 18 |
| 1962 | 19 |
| 1963 | 13 |
| 1964 | 22 |
| 1965 | 11 |
| 1966 | 1 |
| 1967 | 2 |
| 1968 | 5 |
| 1969 | 2 |
| 1970 | 3 |
| 1971 | 7 |
| 1972 | 11 |
| 1973 | 31 |
| 1974 | 6 |
| 1975 | 47 |
| 1976 | 75 |
| 1977 | 113 |
| 1978 | 135 |
| 1979 | 125 |
| 1980 | 112 |
| 1981 | 109 |
| 1982 | 159 |
| 1983 | 194 |
| 1984 | 229 |
| 1985 | 198 |
| 1986 | 168 |
| 1987 | 152 |
| 1988 | 173 |
| 1989 | 185 |
| 1990 | 204 |
| 1991 | 192 |
| 1992 | 204 |
| 1993 | 228 |
| 1994 | 248 |
| 1995 | 221 |
| 1996 | 265 |
| 1997 | 233 |
| 1998 | 167 |
| 1999 | 152 |
| 2000 | 101 |
| 2001 | 141 |
| 2002 | 108 |
| 2003 | 111 |
| 2004 | 122 |
| 2005 | 158 |
| 2006 | 165 |
| 2007 | 185 |
| 2008 | 206 |
| 2009 | 201 |
| 2010 | 267 |
| 2011 | 296 |
| 2012 | 323 |
| 2013 | 339 |
| 2014 | 286 |
| 2015 | 260 |
| 2016 | 247 |
| 2017 | 262 |
| 2018 | 255 |
| 2019 | 249 |
| 2020 | 227 |
| 2021 | 201 |
| 2022 | 164 |
| 2023 | 152 |
| 2024 | 67 |