condition mean min max ZT0-3 123.7 123.7 123.7 ZT4-7 96.9 96.9 96.9 ZT8-11 53.55 53.55 53.55 ZT12-15 60.05 60.05 60.05 ZT16-19 98.30000000000001 98.30000000000001 98.30000000000001 ZT20-23 96.94999999999999 96.94999999999999 96.94999999999999