condition mean min max ZT0-3 40.3879189225 38.20251493 42.573322915 ZT4-7 41.477942462499996 33.76340244 49.192482485 ZT8-11 83.833551815 66.43959534000001 101.22750829 ZT12-15 106.5563766425 99.183337635 113.92941565000001 ZT16-19 116.12268325 110.40787415 121.83749234999999 ZT20-23 131.36758602499998 128.4986844 134.23648765