condition	mean	min	max
4 h after light	22.103518	17.715186	26.49185
8 h after light	18.910152500000002	16.589397	21.230908
12 h after light	15.0783765	13.739555	16.417198
4 h after dark	19.134102	17.096635	21.171569
8 h after dark	21.543605	17.453963	25.633247
12 h after dark	29.152395	29.152395	29.152395