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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 5 |
| 1948 | 2 |
| 1949 | 5 |
| 1950 | 3 |
| 1951 | 4 |
| 1952 | 2 |
| 1953 | 2 |
| 1954 | 3 |
| 1955 | 4 |
| 1956 | 1 |
| 1957 | 5 |
| 1958 | 8 |
| 1959 | 1 |
| 1960 | 4 |
| 1961 | 4 |
| 1962 | 2 |
| 1963 | 7 |
| 1964 | 11 |
| 1965 | 2 |
| 1966 | 12 |
| 1967 | 10 |
| 1968 | 6 |
| 1969 | 11 |
| 1970 | 13 |
| 1971 | 11 |
| 1972 | 13 |
| 1973 | 28 |
| 1974 | 21 |
| 1975 | 100 |
| 1976 | 88 |
| 1977 | 92 |
| 1978 | 76 |
| 1979 | 85 |
| 1980 | 86 |
| 1981 | 98 |
| 1982 | 93 |
| 1983 | 103 |
| 1984 | 131 |
| 1985 | 148 |
| 1986 | 144 |
| 1987 | 124 |
| 1988 | 145 |
| 1989 | 145 |
| 1990 | 172 |
| 1991 | 181 |
| 1992 | 207 |
| 1993 | 232 |
| 1994 | 245 |
| 1995 | 260 |
| 1996 | 263 |
| 1997 | 296 |
| 1998 | 289 |
| 1999 | 325 |
| 2000 | 360 |
| 2001 | 346 |
| 2002 | 397 |
| 2003 | 412 |
| 2004 | 473 |
| 2005 | 583 |
| 2006 | 603 |
| 2007 | 662 |
| 2008 | 770 |
| 2009 | 818 |
| 2010 | 949 |
| 2011 | 1106 |
| 2012 | 1330 |
| 2013 | 1477 |
| 2014 | 1543 |
| 2015 | 1529 |
| 2016 | 1543 |
| 2017 | 1684 |
| 2018 | 1664 |
| 2019 | 1747 |
| 2020 | 1882 |
| 2021 | 1901 |
| 2022 | 1776 |
| 2023 | 1503 |
| 2024 | 604 |