condition mean min max ZT0-3 8615.65 8615.65 8615.65 ZT4-7 11206.4 11206.4 11206.4 ZT8-11 13508.75 13508.75 13508.75 ZT12-15 14746.15 14746.15 14746.15 ZT16-19 11231.2 11231.2 11231.2 ZT20-23 8257.3 8257.3 8257.3