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Table representation of search results timeline featuring number of search results per year.
Year
Number of Results
1947
1
1950
1
1952
1
1954
1
1956
1
1959
1
1960
1
1961
1
1964
1
1965
4
1967
1
1968
1
1969
1
1970
5
1971
39
1972
70
1973
112
1974
111
1975
113
1976
110
1977
92
1978
98
1979
75
1980
83
1981
91
1982
145
1983
136
1984
147
1985
189
1986
139
1987
173
1988
191
1989
276
1990
444
1991
401
1992
409
1993
515
1994
657
1995
710
1996
597
1997
511
1998
454
1999
345
2000
455
2001
519
2002
430
2003
484
2004
429
2005
537
2006
701
2007
817
2008
906
2009
1009
2010
892
2011
828
2012
790
2013
646
2014
559
2015
463
2016
384
2017
307
2018
262
2019
237
2020
205
2021
102
2022
72
2023
64
2024
44
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Page 1
Positive psychology. An introduction.
Seligman ME, Csikszentmihalyi M.
Seligman ME, et al.
Am Psychol. 2000 Jan;55(1):5-14. doi: 10.1037//0003-066x.55.1.5.
Am Psychol. 2000.
PMID: 11392865
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Adaptive Clinical Trial
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