condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.0889657 0.0 0.174971 8 h after dark 0.114968 0.0 0.344904 12 h after dark 0.0 0.0 0.0