condition	mean	min	max
4 h after light	29.11945	29.1153	29.1236
8 h after light	18.75295	18.6203	18.8856
12 h after light	15.436499999999999	15.154	15.719
4 h after dark	18.708099999999998	18.2811	19.2419
8 h after dark	27.502266666666667	26.2096	28.1592
12 h after dark	26.8236	25.2715	28.5518