condition	mean	min	max
4 h after light	15.3263165	14.729067	15.923566
8 h after light	19.137059999999998	19.111924	19.162196
12 h after light	18.087766000000002	17.900746	18.274786
4 h after dark	18.470551	14.944596	21.996506
8 h after dark	19.7194465	18.112676	21.326217
12 h after dark	16.958257	16.958257	16.958257