condition mean min max ZT0-3 2608.05 2608.05 2608.05 ZT4-7 2645.1 2645.1 2645.1 ZT8-11 2857.5 2857.5 2857.5 ZT12-15 2457.95 2457.95 2457.95 ZT16-19 2452.45 2452.45 2452.45 ZT20-23 2492.1499999999996 2492.1499999999996 2492.1499999999996