condition	mean	min	max
4 h after light	19.770699999999998	19.1112	20.4302
8 h after light	14.0991	14.0231	14.1751
12 h after light	18.0595	17.827	18.292
4 h after dark	21.4815	20.4193	22.5437
8 h after dark	27.9376	27.3828	28.4924
12 h after dark	24.66445	23.4593	25.8696