condition mean min max ZT0-3 118.19269093 96.14648105999999 140.2389008 ZT4-7 62.729747849999995 59.308993475 66.150502225 ZT8-11 52.422252345000004 52.19401863 52.65048606 ZT12-15 22.301686785 16.332098520000002 28.27127505 ZT16-19 35.91152868 29.03155607 42.79150129 ZT20-23 75.049870725 60.01540367 90.08433778