condition mean min max ZT0-3 129.022 129.022 129.022 ZT4-7 103.50655 103.50655 103.50655 ZT8-11 65.2414 65.2414 65.2414 ZT12-15 73.9411 73.9411 73.9411 ZT16-19 85.84190000000001 85.84190000000001 85.84190000000001 ZT20-23 113.3075 113.3075 113.3075