condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.4351005 0.427943 0.442258 8 h after light 0.107355 0.0 0.21471 4 h after dark 0.1065715 0.0 0.213143 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0