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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1933 | 1 |
| 1935 | 2 |
| 1937 | 1 |
| 1945 | 2 |
| 1948 | 1 |
| 1949 | 2 |
| 1955 | 2 |
| 1956 | 2 |
| 1959 | 2 |
| 1961 | 2 |
| 1963 | 1 |
| 1964 | 2 |
| 1966 | 4 |
| 1967 | 4 |
| 1969 | 2 |
| 1970 | 3 |
| 1971 | 9 |
| 1972 | 15 |
| 1973 | 11 |
| 1974 | 13 |
| 1975 | 15 |
| 1976 | 18 |
| 1977 | 9 |
| 1978 | 21 |
| 1979 | 14 |
| 1980 | 10 |
| 1981 | 12 |
| 1982 | 22 |
| 1983 | 18 |
| 1984 | 31 |
| 1985 | 39 |
| 1986 | 37 |
| 1987 | 32 |
| 1988 | 34 |
| 1989 | 45 |
| 1990 | 53 |
| 1991 | 60 |
| 1992 | 64 |
| 1993 | 79 |
| 1994 | 64 |
| 1995 | 59 |
| 1996 | 66 |
| 1997 | 68 |
| 1998 | 92 |
| 1999 | 77 |
| 2000 | 111 |
| 2001 | 99 |
| 2002 | 100 |
| 2003 | 135 |
| 2004 | 120 |
| 2005 | 159 |
| 2006 | 168 |
| 2007 | 188 |
| 2008 | 186 |
| 2009 | 208 |
| 2010 | 232 |
| 2011 | 309 |
| 2012 | 295 |
| 2013 | 304 |
| 2014 | 315 |
| 2015 | 281 |
| 2016 | 300 |
| 2017 | 284 |
| 2018 | 289 |
| 2019 | 341 |
| 2020 | 341 |
| 2021 | 354 |
| 2022 | 346 |
| 2023 | 311 |