condition	mean	min	max
4 h after light	19.67465	19.0302	20.3191
8 h after light	18.96585	17.7735	20.1582
12 h after light	19.37475	18.2333	20.5162
4 h after dark	30.3464	29.7674	30.9254
8 h after dark	27.17765	26.6325	27.7228
12 h after dark	27.12975	27.0718	27.1877