condition mean min max ZT0-3 0.19308 0.0 0.38616 ZT4-7 0.0 0.0 0.0 ZT8-11 0.704215 0.704215 0.704215 ZT12-15 0 0 0 ZT16-19 0.1299195 0.1299195 0.1299195 ZT20-23 0.1297705 0.1297705 0.1297705