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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 2 |
| 1954 | 1 |
| 1955 | 7 |
| 1956 | 3 |
| 1963 | 1 |
| 1964 | 2 |
| 1965 | 14 |
| 1966 | 15 |
| 1967 | 13 |
| 1968 | 14 |
| 1969 | 18 |
| 1970 | 17 |
| 1971 | 14 |
| 1972 | 12 |
| 1973 | 21 |
| 1974 | 50 |
| 1975 | 32 |
| 1976 | 45 |
| 1977 | 47 |
| 1978 | 52 |
| 1979 | 67 |
| 1980 | 68 |
| 1981 | 80 |
| 1982 | 72 |
| 1983 | 91 |
| 1984 | 87 |
| 1985 | 65 |
| 1986 | 76 |
| 1987 | 71 |
| 1988 | 87 |
| 1989 | 88 |
| 1990 | 120 |
| 1991 | 91 |
| 1992 | 88 |
| 1993 | 126 |
| 1994 | 82 |
| 1995 | 98 |
| 1996 | 89 |
| 1997 | 109 |
| 1998 | 98 |
| 1999 | 97 |
| 2000 | 105 |
| 2001 | 129 |
| 2002 | 138 |
| 2003 | 108 |
| 2004 | 115 |
| 2005 | 121 |
| 2006 | 136 |
| 2007 | 126 |
| 2008 | 148 |
| 2009 | 209 |
| 2010 | 258 |
| 2011 | 481 |
| 2012 | 863 |
| 2013 | 904 |
| 2014 | 1047 |
| 2015 | 1170 |
| 2016 | 1093 |
| 2017 | 1088 |
| 2018 | 1226 |
| 2019 | 1408 |
| 2020 | 1249 |
| 2021 | 1040 |
| 2022 | 604 |
| 2023 | 468 |
| 2024 | 347 |