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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 2 |
| 1953 | 3 |
| 1954 | 3 |
| 1955 | 7 |
| 1956 | 8 |
| 1957 | 10 |
| 1958 | 10 |
| 1959 | 5 |
| 1960 | 4 |
| 1961 | 6 |
| 1962 | 3 |
| 1964 | 5 |
| 1965 | 10 |
| 1966 | 19 |
| 1967 | 16 |
| 1968 | 14 |
| 1969 | 8 |
| 1970 | 15 |
| 1971 | 14 |
| 1972 | 31 |
| 1973 | 48 |
| 1974 | 92 |
| 1975 | 78 |
| 1976 | 111 |
| 1977 | 138 |
| 1978 | 108 |
| 1979 | 95 |
| 1980 | 104 |
| 1981 | 100 |
| 1982 | 97 |
| 1983 | 102 |
| 1984 | 95 |
| 1985 | 143 |
| 1986 | 176 |
| 1987 | 157 |
| 1988 | 162 |
| 1989 | 217 |
| 1990 | 228 |
| 1991 | 292 |
| 1992 | 412 |
| 1993 | 538 |
| 1994 | 626 |
| 1995 | 841 |
| 1996 | 936 |
| 1997 | 1129 |
| 1998 | 1103 |
| 1999 | 1231 |
| 2000 | 1310 |
| 2001 | 1398 |
| 2002 | 1381 |
| 2003 | 1387 |
| 2004 | 1504 |
| 2005 | 1610 |
| 2006 | 1911 |
| 2007 | 1906 |
| 2008 | 1907 |
| 2009 | 1913 |
| 2010 | 2146 |
| 2011 | 2269 |
| 2012 | 2216 |
| 2013 | 2202 |
| 2014 | 2187 |
| 2015 | 2159 |
| 2016 | 2012 |
| 2017 | 1899 |
| 2018 | 1840 |
| 2019 | 1716 |
| 2020 | 1530 |
| 2021 | 1373 |
| 2022 | 828 |
| 2023 | 494 |
| 2024 | 216 |