condition mean min max ZT0-3 198.8 198.8 198.8 ZT4-7 218.0 218.0 218.0 ZT8-11 210.7 210.7 210.7 ZT12-15 219.5 219.5 219.5 ZT16-19 222.6 222.6 222.6 ZT20-23 190.64999999999998 190.64999999999998 190.64999999999998