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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 1 |
| 1953 | 3 |
| 1954 | 4 |
| 1955 | 1 |
| 1956 | 6 |
| 1957 | 4 |
| 1958 | 3 |
| 1959 | 8 |
| 1960 | 2 |
| 1961 | 5 |
| 1962 | 3 |
| 1965 | 3 |
| 1966 | 14 |
| 1967 | 30 |
| 1968 | 41 |
| 1969 | 26 |
| 1970 | 26 |
| 1971 | 23 |
| 1972 | 40 |
| 1973 | 34 |
| 1974 | 29 |
| 1975 | 40 |
| 1976 | 33 |
| 1977 | 44 |
| 1978 | 39 |
| 1979 | 50 |
| 1980 | 49 |
| 1981 | 57 |
| 1982 | 60 |
| 1983 | 55 |
| 1984 | 56 |
| 1985 | 51 |
| 1986 | 52 |
| 1987 | 67 |
| 1988 | 71 |
| 1989 | 63 |
| 1990 | 69 |
| 1991 | 62 |
| 1992 | 62 |
| 1993 | 67 |
| 1994 | 55 |
| 1995 | 62 |
| 1996 | 71 |
| 1997 | 110 |
| 1998 | 105 |
| 1999 | 116 |
| 2000 | 95 |
| 2001 | 135 |
| 2002 | 129 |
| 2003 | 146 |
| 2004 | 190 |
| 2005 | 214 |
| 2006 | 284 |
| 2007 | 257 |
| 2008 | 301 |
| 2009 | 333 |
| 2010 | 357 |
| 2011 | 392 |
| 2012 | 438 |
| 2013 | 556 |
| 2014 | 554 |
| 2015 | 534 |
| 2016 | 528 |
| 2017 | 457 |
| 2018 | 468 |
| 2019 | 449 |
| 2020 | 387 |
| 2021 | 241 |
| 2022 | 50 |
| 2023 | 19 |
| 2024 | 97 |