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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1948 | 2 |
| 1949 | 1 |
| 1951 | 8 |
| 1952 | 24 |
| 1953 | 31 |
| 1954 | 24 |
| 1955 | 20 |
| 1956 | 31 |
| 1957 | 32 |
| 1958 | 50 |
| 1959 | 35 |
| 1960 | 31 |
| 1961 | 43 |
| 1962 | 25 |
| 1964 | 8 |
| 1965 | 39 |
| 1966 | 64 |
| 1967 | 73 |
| 1968 | 90 |
| 1969 | 91 |
| 1970 | 123 |
| 1971 | 106 |
| 1972 | 103 |
| 1973 | 123 |
| 1974 | 122 |
| 1975 | 138 |
| 1976 | 127 |
| 1977 | 108 |
| 1978 | 132 |
| 1979 | 175 |
| 1980 | 252 |
| 1981 | 252 |
| 1982 | 278 |
| 1983 | 307 |
| 1984 | 407 |
| 1985 | 411 |
| 1986 | 489 |
| 1987 | 460 |
| 1988 | 501 |
| 1989 | 568 |
| 1990 | 593 |
| 1991 | 701 |
| 1992 | 688 |
| 1993 | 651 |
| 1994 | 743 |
| 1995 | 812 |
| 1996 | 826 |
| 1997 | 917 |
| 1998 | 954 |
| 1999 | 943 |
| 2000 | 1057 |
| 2001 | 1066 |
| 2002 | 1150 |
| 2003 | 1208 |
| 2004 | 1188 |
| 2005 | 1514 |
| 2006 | 1554 |
| 2007 | 1713 |
| 2008 | 1706 |
| 2009 | 1739 |
| 2010 | 1873 |
| 2011 | 2013 |
| 2012 | 2224 |
| 2013 | 2120 |
| 2014 | 2000 |
| 2015 | 1914 |
| 2016 | 1897 |
| 2017 | 1708 |
| 2018 | 1702 |
| 2019 | 1624 |
| 2020 | 1427 |
| 2021 | 1089 |
| 2022 | 1173 |
| 2023 | 953 |
| 2024 | 523 |