condition mean min max ZT0-3 0.25076593875 0.25067267 0.2508592075 ZT4-7 0.21570720975000002 0.1305461615 0.300868258 ZT8-11 0.07506871125 0.0560142925 0.09412313 ZT12-15 1.7402198160000002 0.8647565724999999 2.6156830595000002 ZT16-19 2.3642027362499998 2.2881563309999997 2.4402491415 ZT20-23 2.48607630775 1.984821811 2.9873308045