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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 1 |
| 1952 | 5 |
| 1953 | 3 |
| 1955 | 19 |
| 1956 | 27 |
| 1957 | 33 |
| 1958 | 17 |
| 1959 | 14 |
| 1960 | 31 |
| 1961 | 29 |
| 1962 | 31 |
| 1965 | 27 |
| 1966 | 55 |
| 1967 | 75 |
| 1968 | 83 |
| 1969 | 92 |
| 1970 | 90 |
| 1971 | 120 |
| 1972 | 134 |
| 1973 | 141 |
| 1974 | 136 |
| 1975 | 151 |
| 1976 | 127 |
| 1977 | 134 |
| 1978 | 155 |
| 1979 | 155 |
| 1980 | 185 |
| 1981 | 162 |
| 1982 | 169 |
| 1983 | 170 |
| 1984 | 182 |
| 1985 | 246 |
| 1986 | 228 |
| 1987 | 217 |
| 1988 | 229 |
| 1989 | 295 |
| 1990 | 321 |
| 1991 | 332 |
| 1992 | 335 |
| 1993 | 448 |
| 1994 | 388 |
| 1995 | 401 |
| 1996 | 394 |
| 1997 | 488 |
| 1998 | 481 |
| 1999 | 479 |
| 2000 | 664 |
| 2001 | 639 |
| 2002 | 572 |
| 2003 | 673 |
| 2004 | 730 |
| 2005 | 743 |
| 2006 | 870 |
| 2007 | 889 |
| 2008 | 901 |
| 2009 | 985 |
| 2010 | 1077 |
| 2011 | 1119 |
| 2012 | 1095 |
| 2013 | 1028 |
| 2014 | 1000 |
| 2015 | 952 |
| 2016 | 956 |
| 2017 | 924 |
| 2018 | 867 |
| 2019 | 984 |
| 2020 | 993 |
| 2021 | 896 |
| 2022 | 692 |
| 2023 | 517 |
| 2024 | 692 |