condition	mean	min	max
4 h after light	16.9913	16.1576	17.825
8 h after light	20.7531	20.6131	20.8931
12 h after light	33.1358	30.7671	35.5045
4 h after dark	46.0741	41.5874	50.5608
8 h after dark	32.808350000000004	31.9163	33.7004
12 h after dark	24.466	22.627	26.305