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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 8 |
| 1952 | 6 |
| 1953 | 5 |
| 1954 | 7 |
| 1955 | 3 |
| 1956 | 10 |
| 1957 | 10 |
| 1958 | 9 |
| 1959 | 3 |
| 1962 | 2 |
| 1963 | 1 |
| 1964 | 1 |
| 1965 | 33 |
| 1966 | 64 |
| 1967 | 114 |
| 1968 | 152 |
| 1969 | 224 |
| 1970 | 251 |
| 1971 | 280 |
| 1972 | 252 |
| 1973 | 237 |
| 1974 | 267 |
| 1975 | 158 |
| 1976 | 192 |
| 1977 | 181 |
| 1978 | 178 |
| 1979 | 194 |
| 1980 | 176 |
| 1981 | 137 |
| 1982 | 170 |
| 1983 | 208 |
| 1984 | 198 |
| 1985 | 176 |
| 1986 | 177 |
| 1987 | 160 |
| 1988 | 199 |
| 1989 | 213 |
| 1990 | 247 |
| 1991 | 225 |
| 1992 | 263 |
| 1993 | 248 |
| 1994 | 296 |
| 1995 | 364 |
| 1996 | 451 |
| 1997 | 560 |
| 1998 | 590 |
| 1999 | 622 |
| 2000 | 712 |
| 2001 | 687 |
| 2002 | 685 |
| 2003 | 875 |
| 2004 | 985 |
| 2005 | 1161 |
| 2006 | 1233 |
| 2007 | 1300 |
| 2008 | 1295 |
| 2009 | 1429 |
| 2010 | 1395 |
| 2011 | 1511 |
| 2012 | 1515 |
| 2013 | 1561 |
| 2014 | 1558 |
| 2015 | 1603 |
| 2016 | 1654 |
| 2017 | 1638 |
| 2018 | 1588 |
| 2019 | 1622 |
| 2020 | 1434 |
| 2021 | 825 |
| 2022 | 93 |
| 2023 | 57 |
| 2024 | 183 |