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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1950 | 1 |
| 1951 | 4 |
| 1952 | 1 |
| 1953 | 3 |
| 1954 | 1 |
| 1957 | 1 |
| 1958 | 4 |
| 1959 | 1 |
| 1961 | 1 |
| 1962 | 4 |
| 1963 | 4 |
| 1964 | 7 |
| 1965 | 13 |
| 1967 | 23 |
| 1968 | 61 |
| 1969 | 51 |
| 1970 | 63 |
| 1971 | 96 |
| 1972 | 93 |
| 1973 | 232 |
| 1974 | 287 |
| 1975 | 334 |
| 1976 | 306 |
| 1977 | 328 |
| 1978 | 312 |
| 1979 | 275 |
| 1980 | 232 |
| 1981 | 241 |
| 1982 | 261 |
| 1983 | 210 |
| 1984 | 246 |
| 1985 | 221 |
| 1986 | 299 |
| 1987 | 297 |
| 1988 | 322 |
| 1989 | 272 |
| 1990 | 348 |
| 1991 | 392 |
| 1992 | 435 |
| 1993 | 386 |
| 1994 | 381 |
| 1995 | 362 |
| 1996 | 514 |
| 1997 | 498 |
| 1998 | 522 |
| 1999 | 501 |
| 2000 | 460 |
| 2001 | 564 |
| 2002 | 693 |
| 2003 | 681 |
| 2004 | 630 |
| 2005 | 573 |
| 2006 | 653 |
| 2007 | 717 |
| 2008 | 778 |
| 2009 | 734 |
| 2010 | 743 |
| 2011 | 874 |
| 2012 | 939 |
| 2013 | 1113 |
| 2014 | 1020 |
| 2015 | 1038 |
| 2016 | 938 |
| 2017 | 750 |
| 2018 | 850 |
| 2019 | 807 |
| 2020 | 902 |
| 2021 | 718 |
| 2022 | 775 |
| 2023 | 602 |
| 2024 | 499 |
| 2025 | 249 |