condition mean min max 4 h after light 67.80236450000001 65.462491 70.142238 8 h after light 65.896193 64.629228 67.163158 12 h after light 68.313846 67.330947 69.296745 4 h after dark 64.2063765 58.105954 70.306799 8 h after dark 61.9860125 59.342797 64.629228 12 h after dark 58.763903 58.763903 58.763903