condition mean min max ZT0-3 194.1 194.1 194.1 ZT4-7 125.2 125.2 125.2 ZT8-11 216.85000000000002 216.85000000000002 216.85000000000002 ZT12-15 173.25 173.25 173.25 ZT16-19 208.25 208.25 208.25 ZT20-23 172.8 172.8 172.8