condition mean min max ZT0-3 343.35 343.35 343.35 ZT4-7 285.5 285.5 285.5 ZT8-11 326.45 326.45 326.45 ZT12-15 359.6 359.6 359.6 ZT16-19 403.3 403.3 403.3 ZT20-23 395.35 395.35 395.35