condition mean min max ZT0-3 4885.735000000001 4796.77 4974.700000000001 ZT4-7 3776.6450000000004 3776.6450000000004 3776.6450000000004 ZT8-11 1649.375 1649.375 1649.375 ZT12-15 0 0 0 ZT16-19 3536.315 3536.315 3536.315 ZT20-23 5018.16 5018.16 5018.16