condition mean min max ZT0-3 10.292022500000002 9.466305 11.117740000000001 ZT4-7 9.673295 9.673295 9.673295 ZT8-11 6.4350000000000005 6.4350000000000005 6.4350000000000005 ZT12-15 0 0 0 ZT16-19 8.985745 8.985745 8.985745 ZT20-23 10.9338 10.9338 10.9338