condition	mean	min	max
0 h after light	17.93555	16.7804	19.0907
4 h after light	5.6652000000000005	4.89437	6.43603
8 h after light	4.023625	3.53375	4.5135
4 h after dark	13.148299999999999	12.0228	14.2738
8 h after dark	11.14775	10.6746	11.6209
12 h after dark	15.42275	13.038	17.8075