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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 1 |
| 1953 | 4 |
| 1955 | 6 |
| 1956 | 2 |
| 1957 | 3 |
| 1959 | 6 |
| 1960 | 4 |
| 1961 | 4 |
| 1962 | 24 |
| 1963 | 27 |
| 1964 | 38 |
| 1965 | 44 |
| 1966 | 55 |
| 1967 | 55 |
| 1968 | 47 |
| 1969 | 55 |
| 1970 | 47 |
| 1971 | 46 |
| 1972 | 38 |
| 1973 | 45 |
| 1974 | 46 |
| 1975 | 59 |
| 1976 | 54 |
| 1977 | 58 |
| 1978 | 62 |
| 1979 | 76 |
| 1980 | 101 |
| 1981 | 117 |
| 1982 | 125 |
| 1983 | 128 |
| 1984 | 162 |
| 1985 | 136 |
| 1986 | 191 |
| 1987 | 189 |
| 1988 | 203 |
| 1989 | 236 |
| 1990 | 224 |
| 1991 | 223 |
| 1992 | 259 |
| 1993 | 264 |
| 1994 | 301 |
| 1995 | 306 |
| 1996 | 337 |
| 1997 | 328 |
| 1998 | 332 |
| 1999 | 373 |
| 2000 | 365 |
| 2001 | 352 |
| 2002 | 365 |
| 2003 | 369 |
| 2004 | 399 |
| 2005 | 338 |
| 2006 | 425 |
| 2007 | 444 |
| 2008 | 475 |
| 2009 | 487 |
| 2010 | 483 |
| 2011 | 513 |
| 2012 | 579 |
| 2013 | 560 |
| 2014 | 596 |
| 2015 | 597 |
| 2016 | 633 |
| 2017 | 649 |
| 2018 | 616 |
| 2019 | 665 |
| 2020 | 774 |
| 2021 | 894 |
| 2022 | 823 |
| 2023 | 745 |
| 2024 | 556 |
| 2025 | 1 |