condition	mean	min	max
4 h after light	21.69055	18.5456	24.8355
8 h after light	14.01055	13.2649	14.7562
12 h after light	14.02525	12.4271	15.6234
4 h after dark	23.708333333333332	21.1782	27.3978
8 h after dark	24.6082	19.9588	28.5522
12 h after dark	18.732166666666668	16.6995	20.4378