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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 3 |
| 1951 | 1 |
| 1953 | 1 |
| 1955 | 1 |
| 1956 | 2 |
| 1957 | 3 |
| 1958 | 3 |
| 1959 | 1 |
| 1961 | 13 |
| 1962 | 7 |
| 1963 | 18 |
| 1964 | 44 |
| 1965 | 168 |
| 1966 | 275 |
| 1967 | 707 |
| 1968 | 901 |
| 1969 | 1132 |
| 1970 | 1047 |
| 1971 | 1170 |
| 1972 | 1164 |
| 1973 | 1223 |
| 1974 | 1248 |
| 1975 | 1203 |
| 1976 | 996 |
| 1977 | 1058 |
| 1978 | 980 |
| 1979 | 1025 |
| 1980 | 1200 |
| 1981 | 922 |
| 1982 | 859 |
| 1983 | 965 |
| 1984 | 1111 |
| 1985 | 1396 |
| 1986 | 1207 |
| 1987 | 1209 |
| 1988 | 1223 |
| 1989 | 1325 |
| 1990 | 1358 |
| 1991 | 1436 |
| 1992 | 1418 |
| 1993 | 1511 |
| 1994 | 1616 |
| 1995 | 1453 |
| 1996 | 1388 |
| 1997 | 1470 |
| 1998 | 1409 |
| 1999 | 1326 |
| 2000 | 1235 |
| 2001 | 1387 |
| 2002 | 1325 |
| 2003 | 1366 |
| 2004 | 1367 |
| 2005 | 1380 |
| 2006 | 1505 |
| 2007 | 1529 |
| 2008 | 1576 |
| 2009 | 1668 |
| 2010 | 1672 |
| 2011 | 1611 |
| 2012 | 1619 |
| 2013 | 1513 |
| 2014 | 1446 |
| 2015 | 1338 |
| 2016 | 1267 |
| 2017 | 1297 |
| 2018 | 1145 |
| 2019 | 1122 |
| 2020 | 884 |
| 2021 | 676 |
| 2022 | 256 |
| 2023 | 163 |
| 2024 | 69 |