Table 1: The best-fit parameters obtained from a fit of the column density distribution shown in Fig. 20 using a single lognormal distribution, three lognormal distributions, or four normal distributions.

Distr.	x0	x1		Rel. factor
	(mag)	(mag)	(mag)
lnGau #1	-0.241	0.503	0.325	1.000
lnGau #1	-0.150	0.413	0.501	0.150
lnGau #2	-1.805	1.943	0.018	0.744
lnGau #3	0.039	0.267	0.371	0.106
Gau #1	0.015	-	0.022	0.086
Gau #2	0.123	-	0.033	0.353
Gau #3	0.267	-	0.064	0.395
Gau #4	0.419	-	0.118	0.166