condition mean min max ZT0-3 956.05 956.05 956.05 ZT4-7 739.2 739.2 739.2 ZT8-11 679.95 679.95 679.95 ZT12-15 757.05 757.05 757.05 ZT16-19 846.7 846.7 846.7 ZT20-23 885.7 885.7 885.7