condition mean min max ZT0-3 3675.3 3675.3 3675.3 ZT4-7 4085.2 4085.2 4085.2 ZT8-11 4524.200000000001 4524.200000000001 4524.200000000001 ZT12-15 3214.25 3214.25 3214.25 ZT16-19 2946.5 2946.5 2946.5 ZT20-23 3157.25 3157.25 3157.25