condition mean min max 3 h after light 3.7173266666666667 3.24161 4.5175 6 h after light 5.154443333333333 4.04623 6.94096 9 h after light 0.783165 0.0 1.68279 12 h after light 0.320747 0.0 0.557181 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0 0.0 0.0 9 h after dark 0.0 0.0 0.0 12 h after dark 2.6359126666666666 0.608448 3.86435