condition	mean	min	max
4 h after light	14.86905	14.318	15.4201
8 h after light	14.14675	14.0007	14.2928
12 h after light	15.1156	15.0818	15.1494
4 h after dark	17.896349999999998	16.8823	18.9104
8 h after dark	17.28555	16.6849	17.8862
12 h after dark	17.5716	17.3565	17.7867