condition	mean	min	max
4 h after light	21.2649255	20.85303	21.676821
8 h after light	19.3866565	16.881069	21.892244
12 h after light	19.4880085	18.230097	20.74592
4 h after dark	25.4027995	19.953759	30.85184
8 h after dark	24.586489	24.192439	24.980539
12 h after dark	22.192113	22.192113	22.192113