condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.025450200000000003 0.0 0.0763506 12 h after light 0.033707 0.0 0.101121 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0296397 0.0 0.0889191 9 h after dark 0.0 0.0 0.0 12 h after dark 0.03680833333333333 0.0 0.110425