condition mean min max ZT0-3 0.032462033333333334 0.0305271 0.03427295 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.046757999999999994 0.03066 0.062856 ZT16-19 0.0293405 0.0293405 0.0293405 ZT20-23 0.0 0.0 0.0