condition mean min max ZT0-3 172.78975 171.8235 173.756 ZT4-7 95.04230000000001 95.04230000000001 95.04230000000001 ZT8-11 42.26795 42.26795 42.26795 ZT12-15 0 0 0 ZT16-19 39.1312 39.1312 39.1312 ZT20-23 135.4865 135.4865 135.4865