condition	mean	min	max
4 h after light	9.197965	7.96003	10.4359
8 h after light	9.91525	9.89314	9.93736
12 h after light	12.9783	11.2748	14.6818
4 h after dark	21.317050000000002	18.8109	23.8232
8 h after dark	17.07695	16.8308	17.3231
12 h after dark	14.338000000000001	13.9344	14.7416