condition	mean	min	max
4 h after light	6.800875	6.10855	7.4932
8 h after light	15.73415	15.6452	15.8231
12 h after light	12.8526	10.8145	14.8907
4 h after dark	16.9829	15.2766	18.6892
8 h after dark	10.813535	9.31177	12.3153
12 h after dark	9.350885	9.07002	9.63175