condition mean min max ZT0-3 0.9866254999999999 0.9866254999999999 0.9866254999999999 ZT4-7 0.1042395 0.1042395 0.1042395 ZT8-11 0.16899683333333335 0.16899683333333335 0.16899683333333335 ZT12-15 0.352456 0.352456 0.352456 ZT16-19 0.7476 0.7476 0.7476 ZT20-23 0.9151239999999999 0.9151239999999999 0.9151239999999999