condition	mean	min	max
4 h after light	27.8312	24.662	31.0004
8 h after light	35.2971	33.9325	36.6617
12 h after light	22.86385	21.432	24.2957
4 h after dark	41.12365	39.4374	42.8099
8 h after dark	31.71505	30.8153	32.6148
12 h after dark	28.8005	27.4691	30.1319