condition mean min max ZT0-3 94.3276 84.6942 103.96100000000001 ZT4-7 58.33095 58.33095 58.33095 ZT8-11 31.862099999999998 31.862099999999998 31.862099999999998 ZT12-15 0 0 0 ZT16-19 40.0749 40.0749 40.0749 ZT20-23 54.0279 54.0279 54.0279