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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1950 | 1 |
| 1956 | 9 |
| 1957 | 24 |
| 1958 | 51 |
| 1959 | 23 |
| 1963 | 2 |
| 1964 | 27 |
| 1965 | 96 |
| 1966 | 178 |
| 1967 | 230 |
| 1968 | 275 |
| 1969 | 364 |
| 1970 | 328 |
| 1971 | 332 |
| 1972 | 444 |
| 1973 | 550 |
| 1974 | 552 |
| 1975 | 546 |
| 1976 | 487 |
| 1977 | 498 |
| 1978 | 425 |
| 1979 | 437 |
| 1980 | 400 |
| 1981 | 392 |
| 1982 | 446 |
| 1983 | 410 |
| 1984 | 397 |
| 1985 | 401 |
| 1986 | 498 |
| 1987 | 562 |
| 1988 | 633 |
| 1989 | 688 |
| 1990 | 790 |
| 1991 | 927 |
| 1992 | 911 |
| 1993 | 1119 |
| 1994 | 1279 |
| 1995 | 1280 |
| 1996 | 1366 |
| 1997 | 1177 |
| 1998 | 1330 |
| 1999 | 1388 |
| 2000 | 1454 |
| 2001 | 1617 |
| 2002 | 1632 |
| 2003 | 1880 |
| 2004 | 2010 |
| 2005 | 1922 |
| 2006 | 2078 |
| 2007 | 2175 |
| 2008 | 2373 |
| 2009 | 2304 |
| 2010 | 2555 |
| 2011 | 2603 |
| 2012 | 2690 |
| 2013 | 2605 |
| 2014 | 2361 |
| 2015 | 2314 |
| 2016 | 2221 |
| 2017 | 2190 |
| 2018 | 1974 |
| 2019 | 1895 |
| 2020 | 1740 |
| 2021 | 1495 |
| 2022 | 1659 |
| 2023 | 1657 |
| 2024 | 484 |