condition mean min max ZT0-3 118.79400000000001 118.79400000000001 118.79400000000001 ZT4-7 73.59755000000001 73.59755000000001 73.59755000000001 ZT8-11 106.68 106.68 106.68 ZT12-15 123.5975 123.5975 123.5975 ZT16-19 129.6525 129.6525 129.6525 ZT20-23 119.261 119.261 119.261