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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 |
| 1954 | 1 |
| 1955 | 4 |
| 1956 | 4 |
| 1957 | 7 |
| 1958 | 15 |
| 1959 | 5 |
| 1960 | 2 |
| 1961 | 4 |
| 1962 | 7 |
| 1963 | 3 |
| 1964 | 6 |
| 1965 | 50 |
| 1966 | 120 |
| 1967 | 164 |
| 1968 | 194 |
| 1969 | 225 |
| 1970 | 248 |
| 1971 | 329 |
| 1972 | 411 |
| 1973 | 575 |
| 1974 | 663 |
| 1975 | 632 |
| 1976 | 680 |
| 1977 | 722 |
| 1978 | 733 |
| 1979 | 749 |
| 1980 | 795 |
| 1981 | 812 |
| 1982 | 889 |
| 1983 | 833 |
| 1984 | 1003 |
| 1985 | 1105 |
| 1986 | 1269 |
| 1987 | 1197 |
| 1988 | 1373 |
| 1989 | 1464 |
| 1990 | 1580 |
| 1991 | 1722 |
| 1992 | 1890 |
| 1993 | 1973 |
| 1994 | 2090 |
| 1995 | 2189 |
| 1996 | 2151 |
| 1997 | 2273 |
| 1998 | 2168 |
| 1999 | 2102 |
| 2000 | 2341 |
| 2001 | 2372 |
| 2002 | 2296 |
| 2003 | 2305 |
| 2004 | 2285 |
| 2005 | 2339 |
| 2006 | 2221 |
| 2007 | 2285 |
| 2008 | 2375 |
| 2009 | 2498 |
| 2010 | 2614 |
| 2011 | 2631 |
| 2012 | 2737 |
| 2013 | 2682 |
| 2014 | 2469 |
| 2015 | 2398 |
| 2016 | 2071 |
| 2017 | 2098 |
| 2018 | 1992 |
| 2019 | 2003 |
| 2020 | 2017 |
| 2021 | 1595 |
| 2022 | 1149 |
| 2023 | 919 |
| 2024 | 322 |