condition mean min max ZT0-3 41.219500000000004 38.436800000000005 44.0022 ZT4-7 42.03855 42.03855 42.03855 ZT8-11 29.4964 29.4964 29.4964 ZT12-15 0 0 0 ZT16-19 44.908500000000004 44.908500000000004 44.908500000000004 ZT20-23 42.8173 42.8173 42.8173