condition	mean	min	max
4 h after light	19.048099999999998	15.0578	23.0384
8 h after light	11.91705	10.9909	12.8432
12 h after light	23.62225	21.243	26.0015
4 h after dark	31.010866666666665	28.9674	34.0746
8 h after dark	35.044066666666666	31.4079	38.6343
12 h after dark	27.756633333333333	26.8838	28.4456