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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1955 | 42 |
| 1956 | 49 |
| 1957 | 42 |
| 1958 | 45 |
| 1959 | 42 |
| 1960 | 38 |
| 1961 | 33 |
| 1962 | 41 |
| 1963 | 50 |
| 1964 | 55 |
| 1965 | 80 |
| 1966 | 79 |
| 1967 | 110 |
| 1968 | 148 |
| 1969 | 181 |
| 1970 | 140 |
| 1971 | 157 |
| 1972 | 193 |
| 1973 | 191 |
| 1974 | 234 |
| 1975 | 185 |
| 1976 | 202 |
| 1977 | 207 |
| 1978 | 204 |
| 1979 | 221 |
| 1980 | 233 |
| 1981 | 239 |
| 1982 | 251 |
| 1983 | 262 |
| 1984 | 252 |
| 1985 | 288 |
| 1986 | 307 |
| 1987 | 321 |
| 1988 | 300 |
| 1989 | 357 |
| 1990 | 367 |
| 1991 | 408 |
| 1992 | 385 |
| 1993 | 426 |
| 1994 | 514 |
| 1995 | 530 |
| 1996 | 613 |
| 1997 | 679 |
| 1998 | 624 |
| 1999 | 677 |
| 2000 | 658 |
| 2001 | 681 |
| 2002 | 693 |
| 2003 | 642 |
| 2004 | 478 |
| 2005 | 488 |
| 2006 | 495 |
| 2007 | 520 |
| 2008 | 656 |
| 2009 | 612 |
| 2010 | 526 |
| 2011 | 556 |
| 2012 | 556 |
| 2013 | 606 |
| 2014 | 673 |
| 2015 | 696 |
| 2016 | 752 |
| 2017 | 739 |
| 2018 | 825 |
| 2019 | 854 |
| 2020 | 1025 |
| 2021 | 909 |
| 2022 | 803 |
| 2023 | 624 |