condition mean min max ZT0-3 1142.55 1142.55 1142.55 ZT4-7 565.9 565.9 565.9 ZT8-11 575.1 575.1 575.1 ZT12-15 616.55 616.55 616.55 ZT16-19 946.6 946.6 946.6 ZT20-23 1163.5 1163.5 1163.5