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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1958 | 1 |
| 1959 | 3 |
| 1960 | 36 |
| 1961 | 34 |
| 1962 | 35 |
| 1963 | 57 |
| 1964 | 87 |
| 1965 | 44 |
| 1966 | 50 |
| 1967 | 76 |
| 1968 | 71 |
| 1969 | 76 |
| 1970 | 102 |
| 1971 | 117 |
| 1972 | 146 |
| 1973 | 190 |
| 1974 | 245 |
| 1975 | 252 |
| 1976 | 297 |
| 1977 | 298 |
| 1978 | 355 |
| 1979 | 399 |
| 1980 | 420 |
| 1981 | 390 |
| 1982 | 425 |
| 1983 | 369 |
| 1984 | 469 |
| 1985 | 464 |
| 1986 | 453 |
| 1987 | 412 |
| 1988 | 416 |
| 1989 | 393 |
| 1990 | 442 |
| 1991 | 421 |
| 1992 | 417 |
| 1993 | 363 |
| 1994 | 396 |
| 1995 | 352 |
| 1996 | 379 |
| 1997 | 351 |
| 1998 | 344 |
| 1999 | 333 |
| 2000 | 291 |
| 2001 | 324 |
| 2002 | 298 |
| 2003 | 327 |
| 2004 | 293 |
| 2005 | 302 |
| 2006 | 309 |
| 2007 | 355 |
| 2008 | 324 |
| 2009 | 278 |
| 2010 | 275 |
| 2011 | 258 |
| 2012 | 274 |
| 2013 | 239 |
| 2014 | 214 |
| 2015 | 214 |
| 2016 | 211 |
| 2017 | 194 |
| 2018 | 160 |
| 2019 | 157 |
| 2020 | 135 |
| 2021 | 126 |
| 2022 | 111 |
| 2023 | 120 |
| 2024 | 52 |