condition	mean	min	max
4 h after light	16.849333333333334	10.3553	20.8065
8 h after light	11.168953333333333	3.12586	18.9283
12 h after light	14.05114	8.99582	19.8803
4 h after dark	15.6382	12.3447	19.399
8 h after dark	18.613233333333334	15.2141	20.9601
12 h after dark	18.8021	17.7092	20.9767