zfs list USEDCHILD

I don't know how well this table will show in the post.. but please see below. This was the output of the command below (Solaris 10).
zfs list -t all -o name,avail,used,usedsnap,usedds,usedrefreserv,usedchild -r sapool1

sapool1                    6.15T  4.66G         0     32K              0      4.66G
sapool1/p1-msg       6.15T    21K         0     21K              0          0
sapool1/p2-msg       6.15T    21K         0     21K              0          0
sapool1/p3-msg       6.15T    21K         0     21K              0          0
sapool1/p4-msg       6.15T    21K         0     21K              0          0
sapool1/p5-msg       6.15T    21K         0     21K              0          0
sapool1/p6-msg       6.15T   400K         0    400K              0          0
sapool1/p7-msg       6.15T   526K         0    526K              0          0
sapool1/p8-msg       6.15T  1.11M         0   1.11M              0          0
sapool1/staff1-msg  6.15T  1.75G         0   1.75G              0          0

sapool1 is a zfs file system (and zpool) which is provided to a Solaris 10 whole root zone via the dataset parameter in the zone configuration.