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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 |
| 1954 | 6 |
| 1956 | 1 |
| 1957 | 1 |
| 1958 | 2 |
| 1959 | 4 |
| 1960 | 1 |
| 1961 | 11 |
| 1962 | 8 |
| 1963 | 7 |
| 1964 | 5 |
| 1965 | 5 |
| 1966 | 12 |
| 1967 | 21 |
| 1968 | 17 |
| 1969 | 12 |
| 1970 | 14 |
| 1971 | 17 |
| 1972 | 19 |
| 1973 | 19 |
| 1974 | 12 |
| 1975 | 22 |
| 1976 | 25 |
| 1977 | 20 |
| 1978 | 25 |
| 1979 | 35 |
| 1980 | 39 |
| 1981 | 43 |
| 1982 | 48 |
| 1983 | 58 |
| 1984 | 60 |
| 1985 | 61 |
| 1986 | 56 |
| 1987 | 83 |
| 1988 | 70 |
| 1989 | 76 |
| 1990 | 72 |
| 1991 | 91 |
| 1992 | 86 |
| 1993 | 73 |
| 1994 | 90 |
| 1995 | 72 |
| 1996 | 71 |
| 1997 | 92 |
| 1998 | 81 |
| 1999 | 107 |
| 2000 | 93 |
| 2001 | 109 |
| 2002 | 98 |
| 2003 | 112 |
| 2004 | 113 |
| 2005 | 130 |
| 2006 | 143 |
| 2007 | 144 |
| 2008 | 146 |
| 2009 | 129 |
| 2010 | 154 |
| 2011 | 176 |
| 2012 | 178 |
| 2013 | 181 |
| 2014 | 212 |
| 2015 | 180 |
| 2016 | 212 |
| 2017 | 186 |
| 2018 | 219 |
| 2019 | 218 |
| 2020 | 256 |
| 2021 | 304 |
| 2022 | 275 |
| 2023 | 261 |
| 2024 | 172 |