condition mean min max ZT0-3 0.1585725 0.1585725 0.1585725 ZT4-7 0.186509 0.186509 0.186509 ZT8-11 0.8580205000000001 0.8580205000000001 0.8580205000000001 ZT12-15 1.16666 1.16666 1.16666 ZT16-19 0.3272195 0.3272195 0.3272195 ZT20-23 0.1488488 0.1488488 0.1488488