condition	mean	min	max
4 h after light	17.121650000000002	15.4251	18.8182
8 h after light	15.8036	15.1936	16.4136
12 h after light	15.993100000000002	14.3756	17.6106
4 h after dark	19.550133333333335	18.4098	20.1815
8 h after dark	20.769833333333334	19.7676	21.8358
12 h after dark	16.863466666666667	16.4726	17.1925