condition	mean	min	max
4 h after light	16.520803	16.007588	17.034018
8 h after light	15.5281925	13.801349	17.255036
12 h after light	15.910224500000002	14.123378	17.697071
4 h after dark	20.035428000000003	17.364481	22.706375
8 h after dark	21.797154	21.431041	22.163267
12 h after dark	17.319686	17.319686	17.319686