condition mean min max ZT0-3 73.852475 72.50460000000001 75.20035 ZT4-7 46.029250000000005 46.029250000000005 46.029250000000005 ZT8-11 122.50399999999999 122.50399999999999 122.50399999999999 ZT12-15 0 0 0 ZT16-19 139.407 139.407 139.407 ZT20-23 103.039 103.039 103.039