condition	mean	min	max
4 h after light	21.701774	19.360709	24.042839
8 h after light	20.548825	18.774494	22.323156
12 h after light	19.0006765	18.979143	19.02221
4 h after dark	14.832579500000001	14.481923	15.183236
8 h after dark	16.654746	15.067841	18.241651
12 h after dark	16.449591	16.449591	16.449591