condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0198775 0.0 0.0596325 12 h after light 0.013064466666666668 0.0 0.0391934 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0