condition mean min max 4 h after light 6.377825 1.98475 10.7709 8 h after light 8.38681 7.92646 8.84716 12 h after light 7.851710000000001 5.73331 9.97011 4 h after dark 3.4031233333333333 1.41888 5.99652 8 h after dark 4.25409 3.76993 4.94095 12 h after dark 3.4978100000000003 1.27567 4.67114