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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1948 | 1 |
| 1954 | 2 |
| 1956 | 1 |
| 1957 | 1 |
| 1959 | 1 |
| 1963 | 3 |
| 1964 | 7 |
| 1965 | 21 |
| 1966 | 86 |
| 1967 | 139 |
| 1968 | 158 |
| 1969 | 177 |
| 1970 | 187 |
| 1971 | 206 |
| 1972 | 233 |
| 1973 | 249 |
| 1974 | 248 |
| 1975 | 227 |
| 1976 | 264 |
| 1977 | 289 |
| 1978 | 216 |
| 1979 | 253 |
| 1980 | 221 |
| 1981 | 258 |
| 1982 | 247 |
| 1983 | 241 |
| 1984 | 287 |
| 1985 | 255 |
| 1986 | 225 |
| 1987 | 238 |
| 1988 | 220 |
| 1989 | 278 |
| 1990 | 256 |
| 1991 | 298 |
| 1992 | 249 |
| 1993 | 233 |
| 1994 | 223 |
| 1995 | 194 |
| 1996 | 236 |
| 1997 | 232 |
| 1998 | 209 |
| 1999 | 213 |
| 2000 | 180 |
| 2001 | 283 |
| 2002 | 269 |
| 2003 | 287 |
| 2004 | 340 |
| 2005 | 403 |
| 2006 | 450 |
| 2007 | 506 |
| 2008 | 568 |
| 2009 | 585 |
| 2010 | 569 |
| 2011 | 628 |
| 2012 | 706 |
| 2013 | 649 |
| 2014 | 663 |
| 2015 | 588 |
| 2016 | 559 |
| 2017 | 567 |
| 2018 | 571 |
| 2019 | 601 |
| 2020 | 497 |
| 2021 | 309 |
| 2022 | 307 |
| 2023 | 292 |
| 2024 | 728 |
| 2025 | 671 |