condition	mean	min	max
4 h after light	19.437338500000003	17.094635	21.780042
8 h after light	19.3683635	16.473732	22.262995
12 h after light	23.771318	23.709041	23.833595
4 h after dark	22.538055	17.455561	27.620549
8 h after dark	18.653090499999998	17.807986	19.498195
12 h after dark	17.85838	17.85838	17.85838