condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0288621 0.0288621 0.0288621 ZT8-11 0.060816 0.060816 0.060816 ZT12-15 0.031961699999999996 0.03031325 0.03361015 ZT16-19 0.0282997 0.0282997 0.0282997 ZT20-23 0.0650555 0.0650555 0.0650555