condition mean min max ZT0-3 2246.35 2246.35 2246.35 ZT4-7 2825.5 2825.5 2825.5 ZT8-11 2675.1 2675.1 2675.1 ZT12-15 2285.4 2285.4 2285.4 ZT16-19 2405.0 2405.0 2405.0 ZT20-23 2632.8500000000004 2632.8500000000004 2632.8500000000004