condition	mean	min	max
3 h after light	17.1936	15.6502	18.8703
6 h after light	19.2528	17.8418	20.4384
9 h after light	21.874399999999998	21.0125	22.351
12 h after light	20.918733333333332	20.4681	21.6371
3 h after dark	26.6085	24.9164	29.6229
6 h after dark	28.24	27.8893	28.7879
9 h after dark	28.6702	26.7263	31.2072
12 h after dark	26.6056	23.1347	30.1895