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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1954 | 1 |
| 1955 | 1 |
| 1957 | 1 |
| 1959 | 1 |
| 1961 | 3 |
| 1962 | 1 |
| 1964 | 1 |
| 1965 | 29 |
| 1966 | 53 |
| 1967 | 84 |
| 1968 | 103 |
| 1969 | 114 |
| 1970 | 116 |
| 1971 | 141 |
| 1972 | 132 |
| 1973 | 148 |
| 1974 | 190 |
| 1975 | 136 |
| 1976 | 168 |
| 1977 | 140 |
| 1978 | 173 |
| 1979 | 191 |
| 1980 | 170 |
| 1981 | 228 |
| 1982 | 206 |
| 1983 | 234 |
| 1984 | 316 |
| 1985 | 356 |
| 1986 | 333 |
| 1987 | 384 |
| 1988 | 347 |
| 1989 | 378 |
| 1990 | 431 |
| 1991 | 472 |
| 1992 | 519 |
| 1993 | 472 |
| 1994 | 511 |
| 1995 | 493 |
| 1996 | 539 |
| 1997 | 576 |
| 1998 | 570 |
| 1999 | 600 |
| 2000 | 583 |
| 2001 | 602 |
| 2002 | 627 |
| 2003 | 706 |
| 2004 | 757 |
| 2005 | 776 |
| 2006 | 859 |
| 2007 | 1009 |
| 2008 | 1187 |
| 2009 | 1237 |
| 2010 | 1307 |
| 2011 | 1429 |
| 2012 | 1427 |
| 2013 | 1550 |
| 2014 | 1660 |
| 2015 | 1652 |
| 2016 | 1534 |
| 2017 | 1673 |
| 2018 | 1601 |
| 2019 | 1608 |
| 2020 | 1532 |
| 2021 | 1288 |
| 2022 | 1603 |
| 2023 | 1471 |
| 2024 | 1974 |
| 2025 | 1188 |