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. 2021 Feb 14;126(4):3393–3419. doi: 10.1007/s11192-021-03897-z

Table 2.

The descriptive statistics of the control variables

Variables N Mean SD Min Max
Current-year citations (per) 703 0.13 0.13 0.00 1.00
Second-year citations (per) 703 0.72 0.72 0.02 7.12
The number of authors 703 1.82 0.38 1.12 3.51
The number of funds 703 0.57 0.56 0.00 2.10
The number of keywords 703 3.92 0.39 3.00 5.94
The number of references 703 14.44 9.17 0.00 42.14
The number of pages 703 8.16 3.66 3.07 23.71
The started year of publication 703 1979.95 10.08 1955.00 1998.00
The quantity of papers 703 160.46 68.58 47.00 449.00
The journals’ rankings of CSSCI 666 25.12 16.89 1.00 68.00
Current-year citations (per, 2001) 37 0.08 0.11 0.00 0.60
Current-year citations (per, 2005) 37 0.10 0.10 0.01 0.58
Current-year citations (per, 2010) 37 0.12 0.11 0.02 0.63
Current-year citations (per, 2015) 37 0.15 0.11 0.03 0.60
Second-year citations (per, 2001) 37 0.42 0.50 0.05 3.05
Second-year citations (per, 2005) 37 0.52 0.54 0.13 3.27
Second-year citations (per, 2010) 37 0.74 0.64 0.22 3.94
Second-year citations (per, 2015) 37 1.05 0.73 0.29 3.64

The annual statistics of the papers published with the 37 journals from 2001 to 2019 were reported. The CSSCI ranking of the 2017–2018 Journals has been greatly questioned, which was suspended from then on