condition mean min max ZT0-3 4744.65 4744.65 4744.65 ZT4-7 5557.5 5557.5 5557.5 ZT8-11 5329.7 5329.7 5329.7 ZT12-15 5370.1 5370.1 5370.1 ZT16-19 4514.9 4514.9 4514.9 ZT20-23 4863.5 4863.5 4863.5