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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1952 | 1 |
| 1953 | 1 |
| 1954 | 1 |
| 1955 | 6 |
| 1957 | 4 |
| 1958 | 3 |
| 1959 | 9 |
| 1960 | 2 |
| 1961 | 4 |
| 1962 | 9 |
| 1964 | 3 |
| 1965 | 15 |
| 1966 | 34 |
| 1967 | 40 |
| 1968 | 40 |
| 1969 | 50 |
| 1970 | 48 |
| 1971 | 65 |
| 1972 | 55 |
| 1973 | 62 |
| 1974 | 68 |
| 1975 | 66 |
| 1976 | 59 |
| 1977 | 85 |
| 1978 | 58 |
| 1979 | 58 |
| 1980 | 62 |
| 1981 | 90 |
| 1982 | 92 |
| 1983 | 73 |
| 1984 | 78 |
| 1985 | 88 |
| 1986 | 67 |
| 1987 | 68 |
| 1988 | 67 |
| 1989 | 81 |
| 1990 | 101 |
| 1991 | 106 |
| 1992 | 76 |
| 1993 | 92 |
| 1994 | 109 |
| 1995 | 92 |
| 1996 | 118 |
| 1997 | 149 |
| 1998 | 141 |
| 1999 | 138 |
| 2000 | 167 |
| 2001 | 164 |
| 2002 | 187 |
| 2003 | 261 |
| 2004 | 262 |
| 2005 | 288 |
| 2006 | 335 |
| 2007 | 322 |
| 2008 | 348 |
| 2009 | 346 |
| 2010 | 377 |
| 2011 | 465 |
| 2012 | 543 |
| 2013 | 546 |
| 2014 | 506 |
| 2015 | 535 |
| 2016 | 564 |
| 2017 | 515 |
| 2018 | 500 |
| 2019 | 441 |
| 2020 | 516 |
| 2021 | 430 |
| 2022 | 229 |
| 2023 | 174 |
| 2024 | 83 |