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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1951 | 6 |
| 1952 | 52 |
| 1953 | 41 |
| 1954 | 44 |
| 1955 | 38 |
| 1956 | 47 |
| 1957 | 60 |
| 1958 | 49 |
| 1959 | 23 |
| 1963 | 10 |
| 1964 | 18 |
| 1965 | 143 |
| 1966 | 305 |
| 1967 | 414 |
| 1968 | 445 |
| 1969 | 502 |
| 1970 | 519 |
| 1971 | 611 |
| 1972 | 695 |
| 1973 | 725 |
| 1974 | 793 |
| 1975 | 755 |
| 1976 | 813 |
| 1977 | 834 |
| 1978 | 835 |
| 1979 | 774 |
| 1980 | 854 |
| 1981 | 803 |
| 1982 | 1016 |
| 1983 | 1073 |
| 1984 | 1253 |
| 1985 | 1501 |
| 1986 | 1344 |
| 1987 | 1428 |
| 1988 | 1423 |
| 1989 | 1642 |
| 1990 | 1551 |
| 1991 | 1598 |
| 1992 | 1551 |
| 1993 | 1688 |
| 1994 | 1634 |
| 1995 | 1587 |
| 1996 | 1427 |
| 1997 | 1418 |
| 1998 | 1345 |
| 1999 | 1286 |
| 2000 | 1286 |
| 2001 | 1296 |
| 2002 | 1292 |
| 2003 | 1292 |
| 2004 | 1134 |
| 2005 | 1144 |
| 2006 | 1185 |
| 2007 | 1191 |
| 2008 | 1137 |
| 2009 | 1025 |
| 2010 | 913 |
| 2011 | 907 |
| 2012 | 859 |
| 2013 | 776 |
| 2014 | 719 |
| 2015 | 606 |
| 2016 | 586 |
| 2017 | 550 |
| 2018 | 521 |
| 2019 | 458 |
| 2020 | 371 |
| 2021 | 271 |
| 2022 | 27 |
| 2023 | 4 |
| 2024 | 0 |