condition	mean	min	max
4 h after light	19.15185	16.4808	21.8229
8 h after light	11.281115	5.21023	17.352
12 h after light	20.8566	20.0745	21.6387
4 h after dark	38.0202	33.0495	42.1098
8 h after dark	18.019433333333332	13.2004	25.3349
12 h after dark	23.009933333333333	20.3506	25.1788