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Table 2 Descriptive statistics of variables

From: The impacts of port infrastructure and logistics performance on economic growth: the mediating role of seaborne trade

Variables N Mean S.D. Min Max Skewness Kurtosis Shapiro-Wilk test
QPI 228 1.51 0.23 0.88 1.92 −0.39 −0.36 0.98**
LPIAT 228 1.15 0.18 0.71 1.44 −0.18 −0.82 0.97***
LPICQ 228 1.11 0.19 0.74 1.44 0.07 −1.11 0.96***
LPIEA 228 1.11 0.14 0.73 1.43 −0.22 −0.50 0.99*
LPIEC 228 1.05 0.21 0.62 1.44 0.04 −1.11 0.96***
LPIFS 228 1.27 0.15 0.88 1.51 −0.31 −0.90 0.96***
LPIQT 228 1.09 0.22 0.56 1.47 0.04 −1.06 0.96***
CT 228 14.63 1.50 11.52 19.02 0.32 −0.56 0.97***
LSC 228 3.28 0.88 1.25 5.11 −0.28 −0.66 0.98**
PGDP 228 9.7 1.00 6.80 11.85 −0.54 −0.38 0.96***
  1. N number of observations, S.D. standard deviation
  2. *p < 0.05, **p < 0.01, ***p < 0.001