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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1955 | 1 |
| 1957 | 1 |
| 1960 | 2 |
| 1964 | 1 |
| 1965 | 2 |
| 1966 | 7 |
| 1967 | 12 |
| 1968 | 21 |
| 1969 | 23 |
| 1970 | 25 |
| 1971 | 29 |
| 1972 | 43 |
| 1973 | 50 |
| 1974 | 36 |
| 1975 | 30 |
| 1976 | 40 |
| 1977 | 55 |
| 1978 | 49 |
| 1979 | 64 |
| 1980 | 64 |
| 1981 | 39 |
| 1982 | 51 |
| 1983 | 61 |
| 1984 | 60 |
| 1985 | 69 |
| 1986 | 68 |
| 1987 | 69 |
| 1988 | 61 |
| 1989 | 76 |
| 1990 | 92 |
| 1991 | 98 |
| 1992 | 119 |
| 1993 | 135 |
| 1994 | 159 |
| 1995 | 215 |
| 1996 | 296 |
| 1997 | 353 |
| 1998 | 331 |
| 1999 | 369 |
| 2000 | 399 |
| 2001 | 393 |
| 2002 | 366 |
| 2003 | 386 |
| 2004 | 469 |
| 2005 | 492 |
| 2006 | 543 |
| 2007 | 668 |
| 2008 | 782 |
| 2009 | 791 |
| 2010 | 954 |
| 2011 | 938 |
| 2012 | 1004 |
| 2013 | 1104 |
| 2014 | 1069 |
| 2015 | 1108 |
| 2016 | 1093 |
| 2017 | 1067 |
| 2018 | 1038 |
| 2019 | 1019 |
| 2020 | 1082 |
| 2021 | 1009 |
| 2022 | 947 |
| 2023 | 863 |
| 2024 | 732 |
| 2025 | 1 |