condition mean min max ZT0-3 1296.6 1296.6 1296.6 ZT4-7 1000.2 1000.2 1000.2 ZT8-11 938.1 938.1 938.1 ZT12-15 1053.25 1053.25 1053.25 ZT16-19 1102.1999999999998 1102.1999999999998 1102.1999999999998 ZT20-23 1163.85 1163.85 1163.85