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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 2 |
| 1952 | 2 |
| 1953 | 2 |
| 1954 | 5 |
| 1955 | 6 |
| 1956 | 4 |
| 1957 | 9 |
| 1958 | 4 |
| 1959 | 7 |
| 1960 | 16 |
| 1961 | 22 |
| 1962 | 16 |
| 1967 | 1 |
| 1968 | 1 |
| 1970 | 1 |
| 1971 | 1 |
| 1974 | 4 |
| 1975 | 3 |
| 1976 | 4 |
| 1977 | 49 |
| 1978 | 102 |
| 1979 | 162 |
| 1980 | 198 |
| 1981 | 151 |
| 1982 | 297 |
| 1983 | 194 |
| 1984 | 218 |
| 1985 | 185 |
| 1986 | 174 |
| 1987 | 241 |
| 1988 | 224 |
| 1989 | 234 |
| 1990 | 241 |
| 1991 | 234 |
| 1992 | 215 |
| 1993 | 210 |
| 1994 | 208 |
| 1995 | 214 |
| 1996 | 219 |
| 1997 | 263 |
| 1998 | 255 |
| 1999 | 264 |
| 2000 | 301 |
| 2001 | 315 |
| 2002 | 324 |
| 2003 | 405 |
| 2004 | 414 |
| 2005 | 474 |
| 2006 | 519 |
| 2007 | 593 |
| 2008 | 618 |
| 2009 | 671 |
| 2010 | 689 |
| 2011 | 702 |
| 2012 | 736 |
| 2013 | 819 |
| 2014 | 811 |
| 2015 | 785 |
| 2016 | 806 |
| 2017 | 811 |
| 2018 | 722 |
| 2019 | 754 |
| 2020 | 529 |
| 2021 | 242 |
| 2022 | 111 |
| 2023 | 107 |
| 2024 | 29 |