condition mean min max 0 h after light 9.615675 9.44994 9.78141 2 h after light 10.272155000000001 9.42191 11.1224 4 h after light 10.2914 10.2572 10.3256 8 h after light 12.6039 12.1275 13.0803 12 h after light 13.70935 13.3125 14.1062 2 h after dark 17.77795 17.5459 18.01 4 h after dark 13.6613 11.8118 15.5108 8 h after dark 12.8233 12.1059 13.5407 12 h after dark 10.144765 9.84843 10.4411