condition mean min max ZT0-3 801.0999999999999 801.0999999999999 801.0999999999999 ZT4-7 628.7 628.7 628.7 ZT8-11 567.15 567.15 567.15 ZT12-15 715.0 715.0 715.0 ZT16-19 908.95 908.95 908.95 ZT20-23 804.5999999999999 804.5999999999999 804.5999999999999