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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1948 | 1 |
| 1949 | 4 |
| 1951 | 4 |
| 1952 | 9 |
| 1953 | 14 |
| 1954 | 17 |
| 1955 | 24 |
| 1956 | 36 |
| 1957 | 30 |
| 1958 | 18 |
| 1959 | 33 |
| 1960 | 29 |
| 1961 | 43 |
| 1962 | 36 |
| 1963 | 1 |
| 1964 | 3 |
| 1965 | 17 |
| 1966 | 76 |
| 1967 | 108 |
| 1968 | 130 |
| 1969 | 121 |
| 1970 | 113 |
| 1971 | 129 |
| 1972 | 158 |
| 1973 | 169 |
| 1974 | 166 |
| 1975 | 131 |
| 1976 | 107 |
| 1977 | 94 |
| 1978 | 113 |
| 1979 | 105 |
| 1980 | 92 |
| 1981 | 95 |
| 1982 | 114 |
| 1983 | 88 |
| 1984 | 121 |
| 1985 | 124 |
| 1986 | 129 |
| 1987 | 107 |
| 1988 | 122 |
| 1989 | 154 |
| 1990 | 184 |
| 1991 | 188 |
| 1992 | 203 |
| 1993 | 241 |
| 1994 | 273 |
| 1995 | 285 |
| 1996 | 272 |
| 1997 | 310 |
| 1998 | 315 |
| 1999 | 375 |
| 2000 | 379 |
| 2001 | 325 |
| 2002 | 363 |
| 2003 | 320 |
| 2004 | 327 |
| 2005 | 428 |
| 2006 | 484 |
| 2007 | 500 |
| 2008 | 454 |
| 2009 | 523 |
| 2010 | 469 |
| 2011 | 536 |
| 2012 | 619 |
| 2013 | 705 |
| 2014 | 704 |
| 2015 | 697 |
| 2016 | 617 |
| 2017 | 668 |
| 2018 | 605 |
| 2019 | 611 |
| 2020 | 481 |
| 2021 | 275 |
| 2022 | 52 |
| 2023 | 9 |
| 2024 | 4 |