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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 1 |
| 1953 | 1 |
| 1957 | 1 |
| 1959 | 1 |
| 1964 | 2 |
| 1965 | 6 |
| 1966 | 19 |
| 1967 | 16 |
| 1968 | 22 |
| 1969 | 26 |
| 1970 | 31 |
| 1971 | 42 |
| 1972 | 38 |
| 1973 | 38 |
| 1974 | 28 |
| 1975 | 51 |
| 1976 | 28 |
| 1977 | 43 |
| 1978 | 32 |
| 1979 | 55 |
| 1980 | 76 |
| 1981 | 67 |
| 1982 | 69 |
| 1983 | 64 |
| 1984 | 61 |
| 1985 | 82 |
| 1986 | 79 |
| 1987 | 70 |
| 1988 | 39 |
| 1989 | 52 |
| 1990 | 67 |
| 1991 | 82 |
| 1992 | 80 |
| 1993 | 74 |
| 1994 | 63 |
| 1995 | 55 |
| 1996 | 56 |
| 1997 | 68 |
| 1998 | 66 |
| 1999 | 83 |
| 2000 | 70 |
| 2001 | 118 |
| 2002 | 104 |
| 2003 | 127 |
| 2004 | 137 |
| 2005 | 117 |
| 2006 | 156 |
| 2007 | 152 |
| 2008 | 133 |
| 2009 | 119 |
| 2010 | 123 |
| 2011 | 168 |
| 2012 | 169 |
| 2013 | 157 |
| 2014 | 137 |
| 2015 | 125 |
| 2016 | 120 |
| 2017 | 127 |
| 2018 | 162 |
| 2019 | 148 |
| 2020 | 181 |
| 2021 | 218 |
| 2022 | 231 |
| 2023 | 231 |
| 2024 | 227 |
| 2025 | 135 |