condition mean min max 2 h after light 15.1623 11.9726 18.51 6 h after light 8.150093333333333 5.97094 10.1786 10 h after light 17.01585 10.1254 25.9376 14 h after light 14.432015 6.58984 27.4638 18 h after light 12.502548333333333 9.17529 15.3067 2 h after dark 8.007443333333333 4.3895 11.8778