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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 1 |
| 1953 | 3 |
| 1954 | 5 |
| 1955 | 14 |
| 1956 | 12 |
| 1957 | 5 |
| 1958 | 3 |
| 1959 | 1 |
| 1960 | 2 |
| 1961 | 9 |
| 1962 | 2 |
| 1964 | 1 |
| 1965 | 15 |
| 1966 | 35 |
| 1967 | 56 |
| 1968 | 70 |
| 1969 | 97 |
| 1970 | 122 |
| 1971 | 140 |
| 1972 | 177 |
| 1973 | 194 |
| 1974 | 211 |
| 1975 | 114 |
| 1976 | 109 |
| 1977 | 133 |
| 1978 | 88 |
| 1979 | 106 |
| 1980 | 143 |
| 1981 | 106 |
| 1982 | 184 |
| 1983 | 135 |
| 1984 | 182 |
| 1985 | 143 |
| 1986 | 141 |
| 1987 | 122 |
| 1988 | 158 |
| 1989 | 161 |
| 1990 | 159 |
| 1991 | 168 |
| 1992 | 166 |
| 1993 | 162 |
| 1994 | 175 |
| 1995 | 179 |
| 1996 | 174 |
| 1997 | 179 |
| 1998 | 193 |
| 1999 | 188 |
| 2000 | 197 |
| 2001 | 183 |
| 2002 | 176 |
| 2003 | 234 |
| 2004 | 187 |
| 2005 | 217 |
| 2006 | 238 |
| 2007 | 237 |
| 2008 | 222 |
| 2009 | 277 |
| 2010 | 218 |
| 2011 | 242 |
| 2012 | 240 |
| 2013 | 233 |
| 2014 | 223 |
| 2015 | 198 |
| 2016 | 213 |
| 2017 | 206 |
| 2018 | 278 |
| 2019 | 347 |
| 2020 | 290 |
| 2021 | 206 |
| 2022 | 145 |
| 2023 | 99 |
| 2024 | 39 |