condition	mean	min	max
4 h after light	19.41965	15.214	23.6253
8 h after light	17.94045	17.3339	18.547
12 h after light	19.3631	17.8986	20.8276
4 h after dark	23.8828	22.7428	26.088
8 h after dark	23.117	19.8644	25.6304
12 h after dark	21.169166666666666	19.2945	23.0788