condition mean min max ZT0-3 1079.95 962.23 1197.67 ZT4-7 1039.9175 1039.9175 1039.9175 ZT8-11 734.1 734.1 734.1 ZT12-15 0 0 0 ZT16-19 1433.59 1433.59 1433.59 ZT20-23 971.1034999999999 971.1034999999999 971.1034999999999