condition mean min max ZT0-3 101.01755 99.36005 102.67505 ZT4-7 122.51650000000001 122.51650000000001 122.51650000000001 ZT8-11 118.3955 118.3955 118.3955 ZT12-15 0 0 0 ZT16-19 146.247 146.247 146.247 ZT20-23 158.311 158.311 158.311