condition mean min max ZT0-3 20.082 20.082 20.082 ZT4-7 14.49155 14.49155 14.49155 ZT8-11 16.0609 16.0609 16.0609 ZT12-15 13.94205 13.94205 13.94205 ZT16-19 19.8585 19.8585 19.8585 ZT20-23 24.157999999999998 24.157999999999998 24.157999999999998