condition mean min max ZT0-3 183.22050000000002 168.80450000000002 197.6365 ZT4-7 226.731 226.731 226.731 ZT8-11 338.67150000000004 338.67150000000004 338.67150000000004 ZT12-15 0 0 0 ZT16-19 408.4095 408.4095 408.4095 ZT20-23 305.53499999999997 305.53499999999997 305.53499999999997