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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1953 | 4 |
| 1954 | 2 |
| 1955 | 1 |
| 1956 | 2 |
| 1958 | 4 |
| 1959 | 1 |
| 1963 | 1 |
| 1965 | 3 |
| 1966 | 12 |
| 1967 | 19 |
| 1968 | 23 |
| 1969 | 15 |
| 1970 | 30 |
| 1971 | 24 |
| 1972 | 22 |
| 1973 | 14 |
| 1974 | 26 |
| 1975 | 15 |
| 1976 | 18 |
| 1977 | 12 |
| 1978 | 20 |
| 1979 | 31 |
| 1980 | 30 |
| 1981 | 39 |
| 1982 | 43 |
| 1983 | 58 |
| 1984 | 50 |
| 1985 | 53 |
| 1986 | 54 |
| 1987 | 115 |
| 1988 | 96 |
| 1989 | 106 |
| 1990 | 134 |
| 1991 | 92 |
| 1992 | 106 |
| 1993 | 112 |
| 1994 | 119 |
| 1995 | 215 |
| 1996 | 394 |
| 1997 | 424 |
| 1998 | 440 |
| 1999 | 444 |
| 2000 | 444 |
| 2001 | 459 |
| 2002 | 499 |
| 2003 | 562 |
| 2004 | 594 |
| 2005 | 657 |
| 2006 | 633 |
| 2007 | 731 |
| 2008 | 823 |
| 2009 | 831 |
| 2010 | 884 |
| 2011 | 864 |
| 2012 | 1016 |
| 2013 | 1060 |
| 2014 | 1098 |
| 2015 | 1182 |
| 2016 | 1028 |
| 2017 | 1095 |
| 2018 | 1125 |
| 2019 | 1192 |
| 2020 | 933 |
| 2021 | 489 |
| 2022 | 73 |
| 2023 | 57 |
| 2024 | 160 |