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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1953 | 4 |
| 1954 | 6 |
| 1955 | 22 |
| 1956 | 43 |
| 1957 | 53 |
| 1958 | 54 |
| 1959 | 39 |
| 1960 | 29 |
| 1961 | 101 |
| 1962 | 76 |
| 1964 | 9 |
| 1965 | 84 |
| 1966 | 156 |
| 1967 | 169 |
| 1968 | 225 |
| 1969 | 177 |
| 1970 | 209 |
| 1971 | 232 |
| 1972 | 234 |
| 1973 | 255 |
| 1974 | 325 |
| 1975 | 315 |
| 1976 | 343 |
| 1977 | 307 |
| 1978 | 311 |
| 1979 | 311 |
| 1980 | 317 |
| 1981 | 347 |
| 1982 | 377 |
| 1983 | 321 |
| 1984 | 320 |
| 1985 | 343 |
| 1986 | 339 |
| 1987 | 383 |
| 1988 | 371 |
| 1989 | 386 |
| 1990 | 371 |
| 1991 | 310 |
| 1992 | 376 |
| 1993 | 346 |
| 1994 | 288 |
| 1995 | 311 |
| 1996 | 333 |
| 1997 | 296 |
| 1998 | 308 |
| 1999 | 338 |
| 2000 | 336 |
| 2001 | 354 |
| 2002 | 312 |
| 2003 | 347 |
| 2004 | 366 |
| 2005 | 368 |
| 2006 | 386 |
| 2007 | 439 |
| 2008 | 463 |
| 2009 | 439 |
| 2010 | 442 |
| 2011 | 435 |
| 2012 | 367 |
| 2013 | 423 |
| 2014 | 416 |
| 2015 | 417 |
| 2016 | 368 |
| 2017 | 311 |
| 2018 | 294 |
| 2019 | 280 |
| 2020 | 247 |
| 2021 | 215 |
| 2022 | 140 |
| 2023 | 120 |
| 2024 | 57 |