condition mean min max ZT0-3 197.0 197.0 197.0 ZT4-7 410.8 410.8 410.8 ZT8-11 260.54999999999995 260.54999999999995 260.54999999999995 ZT12-15 192.9 192.9 192.9 ZT16-19 184.4 184.4 184.4 ZT20-23 190.35 190.35 190.35