condition	mean	min	max
4 h after light	15.685199999999998	15.298	16.0724
8 h after light	9.985885	9.76457	10.2072
12 h after light	11.7027	8.2679	15.1375
4 h after dark	21.5323	18.1594	24.9052
8 h after dark	22.9014	21.0612	24.7416
12 h after dark	18.146050000000002	16.8949	19.3972