condition	mean	min	max
0 h after light	16.8212	16.4324	17.21
4 h after light	22.18535	19.6995	24.6712
8 h after light	18.10495	17.5509	18.659
4 h after dark	20.860349999999997	18.8285	22.8922
8 h after dark	20.0585	17.6803	22.4367
12 h after dark	17.13495	15.6023	18.6676