condition mean min max 4 h after light 9.5111255 9.223677 9.798574 8 h after light 11.303755500000001 10.354124 12.253387 12 h after light 12.9913685 11.050543 14.932194 4 h after dark 11.091143500000001 10.669166 11.513121 8 h after dark 9.052465999999999 8.944912 9.16002 12 h after dark 10.186685 10.186685 10.186685