condition mean min max 0 h after light 0.2436826 0.0976122 0.389753 4 h after light 0.3426685 0.288207 0.39713 8 h after light 0.0 0.0 0.0 4 h after dark 0.04784845 0.0 0.0956969 8 h after dark 0.627005 0.479823 0.774187 12 h after dark 0.2876835 0.194615 0.380752