condition	mean	min	max
4 h after light	63.4	63.4	63.4
8 h after light	79.4	64.6	94.2
12 h after light	78.6	62.5	94.7
4 h after dark	21.85	21.4	22.3
8 h after dark	30.700000000000003	28.7	32.7
12 h after dark	52.0	47.4	56.6