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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1951 | 2 |
| 1952 | 2 |
| 1953 | 1 |
| 1954 | 6 |
| 1955 | 7 |
| 1957 | 1 |
| 1958 | 13 |
| 1959 | 13 |
| 1960 | 20 |
| 1961 | 61 |
| 1962 | 44 |
| 1964 | 4 |
| 1965 | 30 |
| 1966 | 75 |
| 1967 | 119 |
| 1968 | 62 |
| 1969 | 10 |
| 1970 | 5 |
| 1971 | 11 |
| 1972 | 7 |
| 1973 | 15 |
| 1974 | 14 |
| 1975 | 9 |
| 1976 | 17 |
| 1977 | 21 |
| 1978 | 16 |
| 1979 | 16 |
| 1980 | 14 |
| 1981 | 16 |
| 1982 | 13 |
| 1983 | 22 |
| 1984 | 15 |
| 1985 | 25 |
| 1986 | 15 |
| 1987 | 20 |
| 1988 | 36 |
| 1989 | 246 |
| 1990 | 783 |
| 1991 | 889 |
| 1992 | 984 |
| 1993 | 1081 |
| 1994 | 1003 |
| 1995 | 1098 |
| 1996 | 1174 |
| 1997 | 1268 |
| 1998 | 1357 |
| 1999 | 1282 |
| 2000 | 1512 |
| 2001 | 1637 |
| 2002 | 1941 |
| 2003 | 2221 |
| 2004 | 2333 |
| 2005 | 2336 |
| 2006 | 2507 |
| 2007 | 2672 |
| 2008 | 3026 |
| 2009 | 3412 |
| 2010 | 3585 |
| 2011 | 3856 |
| 2012 | 3826 |
| 2013 | 3799 |
| 2014 | 3571 |
| 2015 | 3224 |
| 2016 | 3038 |
| 2017 | 3427 |
| 2018 | 3300 |
| 2019 | 3030 |
| 2020 | 2246 |
| 2021 | 1742 |
| 2022 | 1225 |
| 2023 | 1080 |
| 2024 | 294 |