condition	mean	min	max
4 h after light	10.329664999999999	9.21543	11.4439
8 h after light	7.0221350000000005	6.92333	7.12094
12 h after light	15.093350000000001	14.2581	15.9286
4 h after dark	10.523	10.2164	10.8296
8 h after dark	19.2346	18.3311	20.1381
12 h after dark	17.26025	15.0376	19.4829