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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1953 | 35 |
| 1954 | 34 |
| 1955 | 44 |
| 1956 | 37 |
| 1957 | 48 |
| 1958 | 48 |
| 1959 | 68 |
| 1960 | 30 |
| 1961 | 13 |
| 1962 | 26 |
| 1963 | 31 |
| 1964 | 52 |
| 1965 | 56 |
| 1966 | 54 |
| 1967 | 72 |
| 1968 | 137 |
| 1969 | 125 |
| 1970 | 117 |
| 1971 | 163 |
| 1972 | 161 |
| 1973 | 148 |
| 1974 | 175 |
| 1975 | 183 |
| 1976 | 229 |
| 1977 | 215 |
| 1978 | 231 |
| 1979 | 231 |
| 1980 | 278 |
| 1981 | 278 |
| 1982 | 287 |
| 1983 | 302 |
| 1984 | 275 |
| 1985 | 288 |
| 1986 | 274 |
| 1987 | 275 |
| 1988 | 277 |
| 1989 | 294 |
| 1990 | 245 |
| 1991 | 222 |
| 1992 | 306 |
| 1993 | 281 |
| 1994 | 237 |
| 1995 | 284 |
| 1996 | 234 |
| 1997 | 226 |
| 1998 | 180 |
| 1999 | 163 |
| 2000 | 200 |
| 2001 | 150 |
| 2002 | 144 |
| 2003 | 146 |
| 2004 | 112 |
| 2005 | 107 |
| 2006 | 107 |
| 2007 | 96 |
| 2008 | 98 |
| 2009 | 135 |
| 2010 | 170 |
| 2011 | 162 |
| 2012 | 151 |
| 2013 | 171 |
| 2014 | 208 |
| 2015 | 199 |
| 2016 | 217 |
| 2017 | 232 |
| 2018 | 151 |
| 2019 | 161 |
| 2020 | 146 |
| 2021 | 127 |
| 2022 | 107 |
| 2023 | 105 |
| 2024 | 52 |