condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.0439217 0.0 0.0878434 8 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.04351895 0.0 0.0870379