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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 |
| 1956 | 1 |
| 1957 | 1 |
| 1958 | 2 |
| 1959 | 5 |
| 1960 | 5 |
| 1961 | 1 |
| 1962 | 9 |
| 1963 | 10 |
| 1964 | 6 |
| 1965 | 6 |
| 1966 | 1 |
| 1967 | 1 |
| 1971 | 2 |
| 1973 | 7 |
| 1974 | 12 |
| 1975 | 117 |
| 1976 | 146 |
| 1977 | 206 |
| 1978 | 193 |
| 1979 | 228 |
| 1980 | 331 |
| 1981 | 323 |
| 1982 | 307 |
| 1983 | 329 |
| 1984 | 355 |
| 1985 | 452 |
| 1986 | 429 |
| 1987 | 397 |
| 1988 | 521 |
| 1989 | 632 |
| 1990 | 507 |
| 1991 | 750 |
| 1992 | 469 |
| 1993 | 540 |
| 1994 | 476 |
| 1995 | 530 |
| 1996 | 584 |
| 1997 | 630 |
| 1998 | 648 |
| 1999 | 697 |
| 2000 | 777 |
| 2001 | 762 |
| 2002 | 699 |
| 2003 | 753 |
| 2004 | 840 |
| 2005 | 885 |
| 2006 | 873 |
| 2007 | 859 |
| 2008 | 924 |
| 2009 | 889 |
| 2010 | 1012 |
| 2011 | 1016 |
| 2012 | 995 |
| 2013 | 926 |
| 2014 | 769 |
| 2015 | 834 |
| 2016 | 649 |
| 2017 | 564 |
| 2018 | 485 |
| 2019 | 381 |
| 2020 | 308 |
| 2021 | 229 |
| 2022 | 120 |
| 2023 | 122 |
| 2024 | 159 |
| 2025 | 95 |