condition	mean	min	max
4 h after light	62.9	62.9	62.9
8 h after light	31.7	31.4	32.0
12 h after light	61.7	59.6	63.8
4 h after dark	67.5	49.7	85.3
8 h after dark	80.85	80.0	81.7
12 h after dark	51.2	34.7	67.7