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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 9 |
| 1948 | 54 |
| 1949 | 59 |
| 1950 | 53 |
| 1951 | 64 |
| 1952 | 66 |
| 1953 | 72 |
| 1954 | 70 |
| 1955 | 81 |
| 1956 | 66 |
| 1957 | 102 |
| 1958 | 110 |
| 1959 | 112 |
| 1960 | 115 |
| 1961 | 130 |
| 1962 | 120 |
| 1963 | 132 |
| 1964 | 154 |
| 1965 | 188 |
| 1966 | 147 |
| 1967 | 158 |
| 1968 | 179 |
| 1969 | 197 |
| 1970 | 199 |
| 1971 | 234 |
| 1972 | 332 |
| 1973 | 245 |
| 1974 | 258 |
| 1975 | 241 |
| 1976 | 253 |
| 1977 | 250 |
| 1978 | 253 |
| 1979 | 257 |
| 1980 | 272 |
| 1981 | 293 |
| 1982 | 302 |
| 1983 | 304 |
| 1984 | 335 |
| 1985 | 300 |
| 1986 | 313 |
| 1987 | 333 |
| 1988 | 337 |
| 1989 | 340 |
| 1990 | 326 |
| 1991 | 321 |
| 1992 | 362 |
| 1993 | 334 |
| 1994 | 326 |
| 1995 | 312 |
| 1996 | 298 |
| 1997 | 274 |
| 1998 | 249 |
| 1999 | 225 |
| 2000 | 222 |
| 2001 | 233 |
| 2002 | 248 |
| 2003 | 246 |
| 2004 | 325 |
| 2005 | 314 |
| 2006 | 425 |
| 2007 | 430 |
| 2008 | 317 |
| 2009 | 266 |
| 2010 | 284 |
| 2011 | 308 |
| 2012 | 300 |
| 2013 | 288 |
| 2014 | 260 |
| 2015 | 295 |
| 2016 | 286 |
| 2017 | 282 |
| 2018 | 235 |
| 2019 | 227 |
| 2020 | 329 |
| 2021 | 313 |
| 2022 | 242 |
| 2023 | 37 |