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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1949 | 1 |
| 1950 | 1 |
| 1951 | 12 |
| 1952 | 9 |
| 1953 | 6 |
| 1954 | 12 |
| 1955 | 9 |
| 1956 | 1 |
| 1957 | 5 |
| 1958 | 8 |
| 1959 | 1 |
| 1960 | 6 |
| 1961 | 7 |
| 1962 | 8 |
| 1963 | 8 |
| 1964 | 7 |
| 1965 | 7 |
| 1966 | 3 |
| 1967 | 9 |
| 1968 | 5 |
| 1969 | 23 |
| 1970 | 36 |
| 1971 | 35 |
| 1972 | 47 |
| 1973 | 57 |
| 1974 | 42 |
| 1975 | 44 |
| 1976 | 49 |
| 1977 | 41 |
| 1978 | 45 |
| 1979 | 55 |
| 1980 | 48 |
| 1981 | 51 |
| 1982 | 56 |
| 1983 | 68 |
| 1984 | 76 |
| 1985 | 84 |
| 1986 | 80 |
| 1987 | 80 |
| 1988 | 92 |
| 1989 | 101 |
| 1990 | 111 |
| 1991 | 104 |
| 1992 | 108 |
| 1993 | 90 |
| 1994 | 99 |
| 1995 | 93 |
| 1996 | 94 |
| 1997 | 85 |
| 1998 | 93 |
| 1999 | 95 |
| 2000 | 92 |
| 2001 | 87 |
| 2002 | 99 |
| 2003 | 98 |
| 2004 | 106 |
| 2005 | 102 |
| 2006 | 122 |
| 2007 | 115 |
| 2008 | 100 |
| 2009 | 103 |
| 2010 | 152 |
| 2011 | 108 |
| 2012 | 147 |
| 2013 | 157 |
| 2014 | 160 |
| 2015 | 164 |
| 2016 | 150 |
| 2017 | 118 |
| 2018 | 136 |
| 2019 | 138 |
| 2020 | 141 |
| 2021 | 170 |
| 2022 | 132 |
| 2023 | 140 |
| 2024 | 49 |