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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 3 |
| 1948 | 1 |
| 1951 | 3 |
| 1952 | 5 |
| 1953 | 13 |
| 1954 | 17 |
| 1955 | 32 |
| 1956 | 35 |
| 1957 | 35 |
| 1958 | 41 |
| 1959 | 17 |
| 1965 | 44 |
| 1966 | 60 |
| 1967 | 58 |
| 1968 | 63 |
| 1969 | 71 |
| 1970 | 95 |
| 1971 | 117 |
| 1972 | 94 |
| 1973 | 119 |
| 1974 | 134 |
| 1975 | 130 |
| 1976 | 166 |
| 1977 | 150 |
| 1978 | 171 |
| 1979 | 200 |
| 1980 | 214 |
| 1981 | 209 |
| 1982 | 185 |
| 1983 | 194 |
| 1984 | 165 |
| 1985 | 173 |
| 1986 | 198 |
| 1987 | 194 |
| 1988 | 217 |
| 1989 | 220 |
| 1990 | 219 |
| 1991 | 209 |
| 1992 | 216 |
| 1993 | 255 |
| 1994 | 241 |
| 1995 | 239 |
| 1996 | 272 |
| 1997 | 259 |
| 1998 | 276 |
| 1999 | 275 |
| 2000 | 338 |
| 2001 | 317 |
| 2002 | 358 |
| 2003 | 417 |
| 2004 | 400 |
| 2005 | 423 |
| 2006 | 482 |
| 2007 | 477 |
| 2008 | 465 |
| 2009 | 543 |
| 2010 | 536 |
| 2011 | 561 |
| 2012 | 608 |
| 2013 | 689 |
| 2014 | 704 |
| 2015 | 712 |
| 2016 | 650 |
| 2017 | 559 |
| 2018 | 506 |
| 2019 | 577 |
| 2020 | 541 |
| 2021 | 387 |
| 2022 | 184 |
| 2023 | 176 |
| 2024 | 447 |
| 2025 | 259 |