condition	mean	min	max
4 h after light	22.05545	20.8311	23.2798
8 h after light	22.0963	21.469	22.7236
12 h after light	19.9789	18.9175	21.0403
4 h after dark	17.526666666666664	15.6778	19.3025
8 h after dark	19.5137	18.339	20.3713
12 h after dark	18.295266666666667	17.1286	18.9363