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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 7 |
| 1952 | 9 |
| 1953 | 15 |
| 1954 | 31 |
| 1955 | 42 |
| 1956 | 13 |
| 1957 | 24 |
| 1958 | 14 |
| 1959 | 4 |
| 1960 | 1 |
| 1965 | 19 |
| 1966 | 74 |
| 1967 | 108 |
| 1968 | 149 |
| 1969 | 127 |
| 1970 | 125 |
| 1971 | 143 |
| 1972 | 136 |
| 1973 | 163 |
| 1974 | 211 |
| 1975 | 182 |
| 1976 | 152 |
| 1977 | 211 |
| 1978 | 206 |
| 1979 | 205 |
| 1980 | 226 |
| 1981 | 241 |
| 1982 | 305 |
| 1983 | 294 |
| 1984 | 309 |
| 1985 | 336 |
| 1986 | 267 |
| 1987 | 267 |
| 1988 | 262 |
| 1989 | 289 |
| 1990 | 313 |
| 1991 | 294 |
| 1992 | 231 |
| 1993 | 204 |
| 1994 | 245 |
| 1995 | 256 |
| 1996 | 187 |
| 1997 | 243 |
| 1998 | 210 |
| 1999 | 212 |
| 2000 | 227 |
| 2001 | 248 |
| 2002 | 236 |
| 2003 | 213 |
| 2004 | 226 |
| 2005 | 255 |
| 2006 | 253 |
| 2007 | 300 |
| 2008 | 302 |
| 2009 | 292 |
| 2010 | 354 |
| 2011 | 353 |
| 2012 | 342 |
| 2013 | 401 |
| 2014 | 352 |
| 2015 | 326 |
| 2016 | 275 |
| 2017 | 239 |
| 2018 | 256 |
| 2019 | 182 |
| 2020 | 136 |
| 2021 | 129 |
| 2022 | 154 |
| 2023 | 153 |
| 2024 | 175 |