condition mean min max ZT0-3 0.43733825 0.1558745 0.7188019999999999 ZT4-7 0.417895 0.417895 0.417895 ZT8-11 0.4166845 0.4166845 0.4166845 ZT12-15 0 0 0 ZT16-19 0.7147745 0.7147745 0.7147745 ZT20-23 0.873206 0.873206 0.873206