condition	mean	min	max
0 h after light	15.6582	15.4988	15.8176
4 h after light	25.0453	18.3273	31.7633
8 h after light	5.7963450000000005	5.54	6.05269
4 h after dark	12.47295	10.7157	14.2302
8 h after dark	19.73335	17.9663	21.5004
12 h after dark	18.7167	17.5259	19.9075