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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 8 |
| 1953 | 9 |
| 1954 | 8 |
| 1955 | 4 |
| 1956 | 7 |
| 1957 | 14 |
| 1958 | 10 |
| 1959 | 11 |
| 1960 | 12 |
| 1961 | 17 |
| 1962 | 12 |
| 1963 | 1 |
| 1964 | 2 |
| 1965 | 62 |
| 1966 | 183 |
| 1967 | 229 |
| 1968 | 251 |
| 1969 | 303 |
| 1970 | 329 |
| 1971 | 331 |
| 1972 | 324 |
| 1973 | 326 |
| 1974 | 397 |
| 1975 | 351 |
| 1976 | 296 |
| 1977 | 336 |
| 1978 | 337 |
| 1979 | 383 |
| 1980 | 350 |
| 1981 | 412 |
| 1982 | 405 |
| 1983 | 444 |
| 1984 | 455 |
| 1985 | 477 |
| 1986 | 440 |
| 1987 | 458 |
| 1988 | 453 |
| 1989 | 532 |
| 1990 | 574 |
| 1991 | 541 |
| 1992 | 588 |
| 1993 | 630 |
| 1994 | 583 |
| 1995 | 595 |
| 1996 | 587 |
| 1997 | 616 |
| 1998 | 659 |
| 1999 | 713 |
| 2000 | 748 |
| 2001 | 723 |
| 2002 | 753 |
| 2003 | 875 |
| 2004 | 970 |
| 2005 | 992 |
| 2006 | 1163 |
| 2007 | 1163 |
| 2008 | 1186 |
| 2009 | 1194 |
| 2010 | 1283 |
| 2011 | 1476 |
| 2012 | 1458 |
| 2013 | 1449 |
| 2014 | 1497 |
| 2015 | 1439 |
| 2016 | 1507 |
| 2017 | 1359 |
| 2018 | 1424 |
| 2019 | 1552 |
| 2020 | 1626 |
| 2021 | 1587 |
| 2022 | 1464 |
| 2023 | 1286 |
| 2024 | 350 |