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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1946 2
1947 1
1948 9
1949 2
1950 3
1951 9
1952 8
1953 12
1954 11
1955 16
1956 8
1957 16
1958 4
1959 13
1960 16
1961 18
1962 18
1963 50
1964 69
1965 36
1966 46
1967 45
1968 53
1969 38
1970 53
1971 37
1972 36
1973 33
1974 35
1975 34
1976 43
1977 21
1978 34
1979 26
1980 23
1981 10
1982 20
1983 11
1984 11
1985 8
1986 6
1987 8
1988 5
1989 5
1990 2
1991 3
1992 2
1993 8
1994 11
1995 14
1996 3
1997 43
1998 143
1999 320
2000 481
2001 628
2002 739
2003 783
2004 936
2005 1113
2006 1460
2007 1647
2008 1855
2009 1974
2010 2006
2011 1850
2012 2091
2013 2272
2014 2338
2015 2419
2016 2406
2017 2333
2018 2363
2019 2496
2020 2694
2021 2907
2022 2792
2023 2742
2024 867

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40,276 results

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Page 1
Sleep Disturbances in Depression.
Murphy MJ, Peterson MJ. Murphy MJ, et al. Sleep Med Clin. 2015 Mar;10(1):17-23. doi: 10.1016/j.jsmc.2014.11.009. Epub 2014 Dec 12. Sleep Med Clin. 2015. PMID: 26055669 Free PMC article. Review.
40,276 results
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