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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1952 | 1 |
| 1953 | 2 |
| 1954 | 3 |
| 1955 | 5 |
| 1956 | 4 |
| 1957 | 8 |
| 1958 | 3 |
| 1959 | 5 |
| 1960 | 3 |
| 1961 | 6 |
| 1962 | 6 |
| 1964 | 2 |
| 1965 | 1 |
| 1966 | 28 |
| 1967 | 72 |
| 1968 | 116 |
| 1969 | 165 |
| 1970 | 213 |
| 1971 | 318 |
| 1972 | 547 |
| 1973 | 834 |
| 1974 | 1000 |
| 1975 | 1048 |
| 1976 | 1102 |
| 1977 | 1295 |
| 1978 | 1372 |
| 1979 | 1506 |
| 1980 | 1614 |
| 1981 | 1658 |
| 1982 | 1564 |
| 1983 | 1587 |
| 1984 | 1723 |
| 1985 | 1688 |
| 1986 | 1471 |
| 1987 | 1367 |
| 1988 | 1365 |
| 1989 | 1440 |
| 1990 | 1386 |
| 1991 | 1340 |
| 1992 | 1232 |
| 1993 | 1284 |
| 1994 | 1173 |
| 1995 | 1111 |
| 1996 | 1073 |
| 1997 | 1065 |
| 1998 | 977 |
| 1999 | 1052 |
| 2000 | 1068 |
| 2001 | 1075 |
| 2002 | 972 |
| 2003 | 1024 |
| 2004 | 1009 |
| 2005 | 1010 |
| 2006 | 1088 |
| 2007 | 1002 |
| 2008 | 1099 |
| 2009 | 1052 |
| 2010 | 932 |
| 2011 | 916 |
| 2012 | 968 |
| 2013 | 903 |
| 2014 | 874 |
| 2015 | 867 |
| 2016 | 768 |
| 2017 | 731 |
| 2018 | 712 |
| 2019 | 635 |
| 2020 | 577 |
| 2021 | 371 |
| 2022 | 70 |
| 2023 | 30 |
| 2024 | 70 |