condition mean min max ZT0-3 43.716098 43.716098 43.716098 ZT4-7 50.8848215 50.8848215 50.8848215 ZT8-11 44.160434 44.160434 44.160434 ZT12-15 39.649759 39.649759 39.649759 ZT16-19 48.6528315 48.6528315 48.6528315 ZT20-23 48.481281 48.481281 48.481281