condition mean min max ZT0-3 0.4746745 0.4746745 0.4746745 ZT4-7 0.5303555 0.5303555 0.5303555 ZT8-11 0.14389000000000002 0.14389000000000002 0.14389000000000002 ZT12-15 0.1373185 0.1373185 0.1373185 ZT16-19 1.5237610000000001 1.5237610000000001 1.5237610000000001 ZT20-23 0.4291105 0.4291105 0.4291105