condition	mean	min	max
4 h after light	45.1	45.1	45.1
8 h after light	41.5	35.3	47.7
12 h after light	44.45	42.2	46.7
4 h after dark	62.25	61.7	62.8
8 h after dark	67.6	63.0	72.2
12 h after dark	53.45	51.4	55.5