**Table 2:** The best-fit parameters to the three data sets.
	log $T_{90,\rm obs}$			log $T_{90, \rm int}$
Sample	$\mu$	w	$\chi^{2}/\rm d.o.f.$	$\mu$	w	$\chi^{2}/\rm d.o.f.$
s1	$1.57\pm0.04$	$1.31\pm0.08$	2.4	$1.06\pm0.04$	$1.23\pm0.09$	2.8
s5	$1.63\pm0.04$	$0.90\pm0.09$	2.5	$1.32\pm0.03$	$0.89\pm0.05$	0.9
s6	$1.62\pm0.04$	$0.76\pm0.07$	0.5	$1.29\pm0.03$	$0.92\pm0.07$	0.3

Note: the fitted parameters for the distribution center ( $\mu$ )
and the width (w) are given in a logarithmic scale.