condition mean min max ZT0-3 0.14005640549999998 0.0 0.28011281099999996 ZT4-7 1.2699290325 0.839813457 1.7000446080000002 ZT8-11 9.705022351 6.3501361185 13.0599085835 ZT12-15 27.6728190025 24.873511715 30.47212629 ZT16-19 19.8897365275 18.70054739 21.078925665 ZT20-23 8.91199322725 5.3192817495 12.504704705