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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1949 | 1 |
| 1954 | 1 |
| 1955 | 1 |
| 1956 | 4 |
| 1957 | 9 |
| 1958 | 11 |
| 1959 | 11 |
| 1960 | 18 |
| 1961 | 23 |
| 1962 | 38 |
| 1963 | 72 |
| 1964 | 101 |
| 1965 | 87 |
| 1966 | 88 |
| 1967 | 113 |
| 1968 | 198 |
| 1969 | 126 |
| 1970 | 126 |
| 1971 | 181 |
| 1972 | 165 |
| 1973 | 176 |
| 1974 | 165 |
| 1975 | 172 |
| 1976 | 180 |
| 1977 | 180 |
| 1978 | 190 |
| 1979 | 177 |
| 1980 | 197 |
| 1981 | 157 |
| 1982 | 175 |
| 1983 | 146 |
| 1984 | 158 |
| 1985 | 179 |
| 1986 | 165 |
| 1987 | 224 |
| 1988 | 285 |
| 1989 | 532 |
| 1990 | 639 |
| 1991 | 776 |
| 1992 | 801 |
| 1993 | 798 |
| 1994 | 879 |
| 1995 | 840 |
| 1996 | 832 |
| 1997 | 791 |
| 1998 | 801 |
| 1999 | 744 |
| 2000 | 746 |
| 2001 | 759 |
| 2002 | 953 |
| 2003 | 909 |
| 2004 | 1017 |
| 2005 | 1196 |
| 2006 | 1173 |
| 2007 | 1333 |
| 2008 | 1325 |
| 2009 | 1141 |
| 2010 | 1184 |
| 2011 | 1161 |
| 2012 | 1133 |
| 2013 | 1217 |
| 2014 | 1059 |
| 2015 | 948 |
| 2016 | 943 |
| 2017 | 835 |
| 2018 | 811 |
| 2019 | 792 |
| 2020 | 892 |
| 2021 | 843 |
| 2022 | 716 |
| 2023 | 705 |
| 2024 | 668 |
| 2025 | 55 |