condition mean min max ZT0-3 0.35804275 0.1811745 0.534911 ZT4-7 1.0837165 1.0837165 1.0837165 ZT8-11 0.368849 0.368849 0.368849 ZT12-15 0 0 0 ZT16-19 0.7124495 0.7124495 0.7124495 ZT20-23 0.7152430000000001 0.7152430000000001 0.7152430000000001