condition	mean	min	max
0 h after light	14.9416	14.1855	15.6977
4 h after light	8.2594	6.3649	10.1539
8 h after light	7.125335	4.90427	9.3464
4 h after dark	10.12198	8.87666	11.3673
8 h after dark	11.92465	10.8514	12.9979
12 h after dark	16.08145	10.6325	21.5304