row.names	sr	pop15	pop75	dpi	ddpi
Australia	11.43	29.35	2.87	2329.68	2.87
Austria	12.07	23.32	4.41	1507.99	3.93
Belgium	13.17	23.80	4.43	2108.47	3.82
Bolivia	5.75	41.89	1.67	189.13	0.22
Brazil	12.88	42.19	0.83	728.47	4.56
Canada	8.79	31.72	2.85	2982.88	2.43
Chile	0.60	39.74	1.34	662.86	2.67
China	11.90	44.75	0.67	289.52	6.51
Colombia	4.98	46.64	1.06	276.65	3.08
Costa Rica	10.78	47.64	1.14	471.24	2.80
Denmark	16.85	24.42	3.93	2496.53	3.99
Ecuador	3.59	46.31	1.19	287.77	2.19
Finland	11.24	27.84	2.37	1681.25	4.32
France	12.64	25.06	4.70	2213.82	4.52
Germany	12.55	23.31	3.35	2457.12	3.44
Greece	10.67	25.62	3.10	870.85	6.28
Guatamala	3.01	46.05	0.87	289.71	1.48
Honduras	7.70	47.32	0.58	232.44	3.19
Iceland	1.27	34.03	3.08	1900.10	1.12
India	9.00	41.31	0.96	88.94	1.54
Ireland	11.34	31.16	4.19	1139.95	2.99
Italy	14.28	24.52	3.48	1390.00	3.54
Japan	21.10	27.01	1.91	1257.28	8.21
Korea	3.98	41.74	0.91	207.68	5.81
Luxembourg	10.35	21.80	3.73	2449.39	1.57
Malta	15.48	32.54	2.47	601.05	8.12
Norway	10.25	25.95	3.67	2231.03	3.62
Netherlands	14.65	24.71	3.25	1740.70	7.66
New Zealand	10.67	32.61	3.17	1487.52	1.76
Nicaragua	7.30	45.04	1.21	325.54	2.48
Panama	4.44	43.56	1.20	568.56	3.61
Paraguay	2.02	41.18	1.05	220.56	1.03
Peru	12.70	44.19	1.28	400.06	0.67
Philippines	12.78	46.26	1.12	152.01	2.00
Portugal	12.49	28.96	2.85	579.51	7.48
South Africa	11.14	31.94	2.28	651.11	2.19
South Rhodesia	13.30	31.92	1.52	250.96	2.00
Spain	11.77	27.74	2.87	768.79	4.35
Sweden	6.86	21.44	4.54	3299.49	3.01
Switzerland	14.13	23.49	3.73	2630.96	2.70
Turkey	5.13	43.42	1.08	389.66	2.96
Tunisia	2.81	46.12	1.21	249.87	1.13
United Kingdom	7.81	23.27	4.46	1813.93	2.01
United States	7.56	29.81	3.43	4001.89	2.45
Venezuela	9.22	46.40	0.90	813.39	0.53
Zambia	18.56	45.25	0.56	138.33	5.14
Jamaica	7.72	41.12	1.73	380.47	10.23
Uruguay	9.24	28.13	2.72	766.54	1.88
Libya	8.89	43.69	2.07	123.58	16.71
Malaysia	4.71	47.20	0.66	242.69	5.08