condition mean min max ZT0-3 37.793949999999995 33.3923 42.1956 ZT4-7 56.8568 56.8568 56.8568 ZT8-11 48.5041 48.5041 48.5041 ZT12-15 0 0 0 ZT16-19 46.91115 46.91115 46.91115 ZT20-23 47.4273 47.4273 47.4273