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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1957 | 2 |
| 1958 | 2 |
| 1959 | 4 |
| 1960 | 4 |
| 1961 | 6 |
| 1962 | 8 |
| 1963 | 14 |
| 1964 | 25 |
| 1965 | 19 |
| 1966 | 35 |
| 1967 | 88 |
| 1968 | 99 |
| 1969 | 115 |
| 1970 | 166 |
| 1971 | 199 |
| 1972 | 214 |
| 1973 | 221 |
| 1974 | 198 |
| 1975 | 236 |
| 1976 | 185 |
| 1977 | 212 |
| 1978 | 232 |
| 1979 | 230 |
| 1980 | 194 |
| 1981 | 247 |
| 1982 | 266 |
| 1983 | 267 |
| 1984 | 326 |
| 1985 | 361 |
| 1986 | 276 |
| 1987 | 310 |
| 1988 | 352 |
| 1989 | 340 |
| 1990 | 376 |
| 1991 | 342 |
| 1992 | 413 |
| 1993 | 333 |
| 1994 | 354 |
| 1995 | 325 |
| 1996 | 324 |
| 1997 | 354 |
| 1998 | 319 |
| 1999 | 277 |
| 2000 | 301 |
| 2001 | 278 |
| 2002 | 328 |
| 2003 | 285 |
| 2004 | 305 |
| 2005 | 379 |
| 2006 | 344 |
| 2007 | 354 |
| 2008 | 314 |
| 2009 | 360 |
| 2010 | 361 |
| 2011 | 349 |
| 2012 | 343 |
| 2013 | 348 |
| 2014 | 367 |
| 2015 | 362 |
| 2016 | 333 |
| 2017 | 317 |
| 2018 | 345 |
| 2019 | 362 |
| 2020 | 361 |
| 2021 | 311 |
| 2022 | 328 |
| 2023 | 210 |
| 2024 | 80 |