condition	mean	min	max
0 h after light	38.93555	38.3944	39.4767
4 h after light	20.87595	19.0246	22.7273
8 h after light	13.3964	12.3438	14.449
4 h after dark	17.55245	16.8646	18.2403
8 h after dark	24.85915	24.3507	25.3676
12 h after dark	29.18485	22.4818	35.8879