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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1948 | 7 |
| 1949 | 2 |
| 1951 | 12 |
| 1952 | 22 |
| 1953 | 35 |
| 1954 | 21 |
| 1955 | 22 |
| 1956 | 9 |
| 1957 | 11 |
| 1958 | 11 |
| 1959 | 5 |
| 1960 | 12 |
| 1961 | 4 |
| 1962 | 5 |
| 1964 | 4 |
| 1965 | 15 |
| 1966 | 41 |
| 1967 | 51 |
| 1968 | 53 |
| 1969 | 72 |
| 1970 | 74 |
| 1971 | 79 |
| 1972 | 71 |
| 1973 | 81 |
| 1974 | 92 |
| 1975 | 79 |
| 1976 | 78 |
| 1977 | 85 |
| 1978 | 81 |
| 1979 | 85 |
| 1980 | 84 |
| 1981 | 95 |
| 1982 | 123 |
| 1983 | 99 |
| 1984 | 93 |
| 1985 | 99 |
| 1986 | 121 |
| 1987 | 134 |
| 1988 | 172 |
| 1989 | 200 |
| 1990 | 193 |
| 1991 | 226 |
| 1992 | 262 |
| 1993 | 317 |
| 1994 | 262 |
| 1995 | 323 |
| 1996 | 290 |
| 1997 | 307 |
| 1998 | 352 |
| 1999 | 363 |
| 2000 | 354 |
| 2001 | 425 |
| 2002 | 478 |
| 2003 | 509 |
| 2004 | 524 |
| 2005 | 572 |
| 2006 | 587 |
| 2007 | 620 |
| 2008 | 627 |
| 2009 | 641 |
| 2010 | 640 |
| 2011 | 708 |
| 2012 | 737 |
| 2013 | 739 |
| 2014 | 663 |
| 2015 | 729 |
| 2016 | 644 |
| 2017 | 599 |
| 2018 | 587 |
| 2019 | 604 |
| 2020 | 541 |
| 2021 | 389 |
| 2022 | 209 |
| 2023 | 181 |
| 2024 | 300 |