condition mean min max 0 h after light 2.938005 2.86015 3.01586 2 h after light 16.93565 16.6072 17.2641 4 h after light 11.287485 9.15027 13.4247 8 h after light 19.64595 16.9077 22.3842 12 h after light 9.013825 7.78675 10.2409 2 h after dark 2.66007 2.5874 2.73274 4 h after dark 1.269685 1.03523 1.50414 8 h after dark 1.068743 0.969186 1.1683 12 h after dark 2.619655 2.06953 3.16978