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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1949 | 1 |
| 1952 | 1 |
| 1953 | 1 |
| 1960 | 1 |
| 1962 | 5 |
| 1963 | 2 |
| 1964 | 7 |
| 1965 | 7 |
| 1966 | 2 |
| 1967 | 3 |
| 1968 | 3 |
| 1969 | 2 |
| 1970 | 2 |
| 1971 | 3 |
| 1972 | 4 |
| 1973 | 9 |
| 1974 | 8 |
| 1975 | 8 |
| 1976 | 13 |
| 1977 | 9 |
| 1978 | 10 |
| 1979 | 9 |
| 1980 | 14 |
| 1981 | 6 |
| 1982 | 9 |
| 1983 | 10 |
| 1984 | 15 |
| 1985 | 18 |
| 1986 | 17 |
| 1987 | 25 |
| 1988 | 43 |
| 1989 | 48 |
| 1990 | 45 |
| 1991 | 47 |
| 1992 | 61 |
| 1993 | 48 |
| 1994 | 52 |
| 1995 | 61 |
| 1996 | 70 |
| 1997 | 62 |
| 1998 | 78 |
| 1999 | 100 |
| 2000 | 92 |
| 2001 | 104 |
| 2002 | 124 |
| 2003 | 125 |
| 2004 | 168 |
| 2005 | 163 |
| 2006 | 213 |
| 2007 | 225 |
| 2008 | 268 |
| 2009 | 273 |
| 2010 | 298 |
| 2011 | 339 |
| 2012 | 345 |
| 2013 | 355 |
| 2014 | 386 |
| 2015 | 421 |
| 2016 | 381 |
| 2017 | 403 |
| 2018 | 392 |
| 2019 | 401 |
| 2020 | 389 |
| 2021 | 441 |
| 2022 | 416 |
| 2023 | 377 |
| 2024 | 297 |