Table 1.

Descriptive statistics.

	variable	No. Obs.	Mean	Std. Dev.	Min	Max	Kurtosis	Skewness
Total	CSAD	2381	0.0173	0.0069	0.0013	0.0855	3.715	1.912
	${\mathrm{R}}_{\mathrm{m},\mathrm{t}}$	2381	0.0003	0.0169	−0.0869	0.1169	4.366	2.093
Before COVID-19	CSAD	2126	0.0169	0.0066	0.0013	0.0729	0.812	1.049
	${\mathrm{R}}_{\mathrm{m},\mathrm{t}}$	2126	0.0005	0.0085	−0.0785	0.1085	0.976	1.528
After COVID- 19	CSAD	255	0.0211	0.0098	0.0029	0.0855	1.201	1.823
	${\mathrm{R}}_{\mathrm{m},\mathrm{t}}$	255	−0.0007	0.0956	−0.0869	0.1169	1.344	3.509
	DSGI	255	51.0201	37.9721	0	100	−1.819	−0.092