condition	mean	min	max
4 h after light	15.837499999999999	15.4582	16.2168
8 h after light	14.780999999999999	14.6822	14.8798
12 h after light	18.06495	15.9969	20.133
4 h after dark	30.40935	29.3992	31.4195
8 h after dark	34.1061	33.5786	34.6336
12 h after dark	29.52665	28.2229	30.8304