condition mean min max ZT0-3 165.04656362499998 159.9363299 170.15679734999998 ZT4-7 173.62925918333332 154.966217 192.29230136666666 ZT8-11 151.66206714999998 133.4981379 169.8259964 ZT12-15 134.7529924 132.57026103333334 136.93572376666668 ZT16-19 124.60627554333334 113.25334148666666 135.9592096 ZT20-23 97.69961484999999 95.20518109 100.19404861