condition	mean	min	max
4 h after light	17.676979	15.895791	19.458167
8 h after light	21.134201	20.056988	22.211414
12 h after light	20.270209	20.056988	20.48343
4 h after dark	22.523231000000003	20.056988	24.989474
8 h after dark	21.198738	18.623379	23.774097
12 h after dark	22.97991	22.97991	22.97991