condition	mean	min	max
4 h after light	14.529113333333333	9.93422	18.25398
8 h after light	10.105096333333334	6.4361180000000004	13.98313
12 h after light	10.735004	7.2190520000000005	12.7698
16 h after light	12.530341	9.441813	15.41586
4 h after dark	19.4684	18.161839999999998	21.28817
8 h after dark	19.22289333333333	18.25378	20.18506