condition mean min max ZT0-3 2213.302159 2213.302159 2213.302159 ZT4-7 3283.4269400000003 3283.4269400000003 3283.4269400000003 ZT8-11 2910.7094275 2910.7094275 2910.7094275 ZT12-15 2985.0572515000003 2985.0572515000003 2985.0572515000003 ZT16-19 3101.159721 3101.159721 3101.159721 ZT20-23 2538.4754735 2538.4754735 2538.4754735