condition mean min max ZT0-3 40.374900000000004 40.374900000000004 40.374900000000004 ZT4-7 16.26115 16.26115 16.26115 ZT8-11 30.4045 30.4045 30.4045 ZT12-15 30.66585 30.66585 30.66585 ZT16-19 42.4537 42.4537 42.4537 ZT20-23 43.939499999999995 43.939499999999995 43.939499999999995