condition mean min max ZT0-3 46.53065 44.461 48.600300000000004 ZT4-7 35.90015 35.90015 35.90015 ZT8-11 64.1642 64.1642 64.1642 ZT12-15 0 0 0 ZT16-19 46.7114 46.7114 46.7114 ZT20-23 44.597049999999996 44.597049999999996 44.597049999999996