condition mean min max ZT0-3 44.4713 44.4713 44.4713 ZT4-7 45.1174 45.1174 45.1174 ZT8-11 24.5061 24.5061 24.5061 ZT12-15 23.397550000000003 23.397550000000003 23.397550000000003 ZT16-19 28.072 28.072 28.072 ZT20-23 40.68015 40.68015 40.68015