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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 1 |
| 1953 | 1 |
| 1954 | 2 |
| 1956 | 2 |
| 1957 | 1 |
| 1959 | 4 |
| 1960 | 1 |
| 1961 | 1 |
| 1962 | 2 |
| 1964 | 2 |
| 1965 | 23 |
| 1966 | 16 |
| 1967 | 24 |
| 1968 | 30 |
| 1969 | 34 |
| 1970 | 43 |
| 1971 | 26 |
| 1972 | 40 |
| 1973 | 28 |
| 1974 | 62 |
| 1975 | 41 |
| 1976 | 48 |
| 1977 | 42 |
| 1978 | 55 |
| 1979 | 50 |
| 1980 | 53 |
| 1981 | 50 |
| 1982 | 41 |
| 1983 | 48 |
| 1984 | 76 |
| 1985 | 53 |
| 1986 | 52 |
| 1987 | 74 |
| 1988 | 54 |
| 1989 | 88 |
| 1990 | 70 |
| 1991 | 72 |
| 1992 | 86 |
| 1993 | 85 |
| 1994 | 74 |
| 1995 | 90 |
| 1996 | 89 |
| 1997 | 117 |
| 1998 | 92 |
| 1999 | 152 |
| 2000 | 168 |
| 2001 | 171 |
| 2002 | 189 |
| 2003 | 242 |
| 2004 | 217 |
| 2005 | 162 |
| 2006 | 181 |
| 2007 | 153 |
| 2008 | 209 |
| 2009 | 201 |
| 2010 | 180 |
| 2011 | 173 |
| 2012 | 178 |
| 2013 | 149 |
| 2014 | 252 |
| 2015 | 228 |
| 2016 | 213 |
| 2017 | 179 |
| 2018 | 140 |
| 2019 | 149 |
| 2020 | 105 |
| 2021 | 110 |
| 2022 | 22 |
| 2023 | 10 |
| 2024 | 6 |