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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1953 | 1 |
| 1954 | 5 |
| 1955 | 2 |
| 1956 | 3 |
| 1957 | 1 |
| 1958 | 2 |
| 1959 | 4 |
| 1960 | 4 |
| 1964 | 1 |
| 1965 | 9 |
| 1966 | 22 |
| 1967 | 27 |
| 1968 | 29 |
| 1969 | 59 |
| 1970 | 69 |
| 1971 | 62 |
| 1972 | 61 |
| 1973 | 62 |
| 1974 | 73 |
| 1975 | 96 |
| 1976 | 71 |
| 1977 | 58 |
| 1978 | 73 |
| 1979 | 44 |
| 1980 | 62 |
| 1981 | 54 |
| 1982 | 70 |
| 1983 | 78 |
| 1984 | 91 |
| 1985 | 127 |
| 1986 | 145 |
| 1987 | 140 |
| 1988 | 192 |
| 1989 | 157 |
| 1990 | 190 |
| 1991 | 181 |
| 1992 | 215 |
| 1993 | 247 |
| 1994 | 230 |
| 1995 | 215 |
| 1996 | 251 |
| 1997 | 336 |
| 1998 | 310 |
| 1999 | 363 |
| 2000 | 379 |
| 2001 | 366 |
| 2002 | 442 |
| 2003 | 580 |
| 2004 | 546 |
| 2005 | 612 |
| 2006 | 658 |
| 2007 | 781 |
| 2008 | 768 |
| 2009 | 891 |
| 2010 | 1156 |
| 2011 | 1322 |
| 2012 | 1490 |
| 2013 | 1439 |
| 2014 | 1497 |
| 2015 | 1413 |
| 2016 | 1473 |
| 2017 | 1516 |
| 2018 | 1370 |
| 2019 | 1219 |
| 2020 | 1157 |
| 2021 | 1005 |
| 2022 | 1377 |
| 2023 | 1337 |
| 2024 | 424 |