condition	mean	min	max
4 h after light	19.56575	17.835	21.2965
8 h after light	20.00305	19.6278	20.3783
12 h after light	22.32675	21.9587	22.6948
4 h after dark	31.8813	31.7568	31.9581
8 h after dark	28.783633333333334	28.2182	29.1572
12 h after dark	26.4248	24.5695	28.3593