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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 2 |
| 1948 | 7 |
| 1949 | 7 |
| 1950 | 14 |
| 1951 | 14 |
| 1952 | 11 |
| 1953 | 21 |
| 1954 | 22 |
| 1955 | 27 |
| 1956 | 17 |
| 1957 | 34 |
| 1958 | 29 |
| 1959 | 21 |
| 1960 | 22 |
| 1961 | 21 |
| 1962 | 20 |
| 1963 | 56 |
| 1964 | 94 |
| 1965 | 104 |
| 1966 | 86 |
| 1967 | 90 |
| 1968 | 94 |
| 1969 | 116 |
| 1970 | 120 |
| 1971 | 129 |
| 1972 | 151 |
| 1973 | 196 |
| 1974 | 201 |
| 1975 | 150 |
| 1976 | 114 |
| 1977 | 123 |
| 1978 | 125 |
| 1979 | 107 |
| 1980 | 119 |
| 1981 | 100 |
| 1982 | 92 |
| 1983 | 99 |
| 1984 | 111 |
| 1985 | 117 |
| 1986 | 99 |
| 1987 | 110 |
| 1988 | 122 |
| 1989 | 146 |
| 1990 | 148 |
| 1991 | 158 |
| 1992 | 172 |
| 1993 | 185 |
| 1994 | 172 |
| 1995 | 201 |
| 1996 | 156 |
| 1997 | 152 |
| 1998 | 184 |
| 1999 | 196 |
| 2000 | 235 |
| 2001 | 301 |
| 2002 | 297 |
| 2003 | 343 |
| 2004 | 449 |
| 2005 | 509 |
| 2006 | 431 |
| 2007 | 522 |
| 2008 | 617 |
| 2009 | 501 |
| 2010 | 427 |
| 2011 | 486 |
| 2012 | 495 |
| 2013 | 425 |
| 2014 | 295 |
| 2015 | 192 |
| 2016 | 108 |
| 2017 | 94 |
| 2018 | 74 |
| 2019 | 57 |
| 2020 | 68 |
| 2021 | 77 |
| 2022 | 12 |
| 2023 | 10 |
| 2024 | 3 |