condition	mean	min	max
4 h after light	17.3435	16.9235	17.7635
8 h after light	10.6207	10.4112	10.8302
12 h after light	5.4374400000000005	4.98871	5.88617
4 h after dark	3.743295	3.57718	3.90941
8 h after dark	9.3989	8.4301	10.3677
12 h after dark	18.320999999999998	18.3142	18.3278