Statistics for Top/bottom 20 Compact-Shaped countries (with lowest area/border+coastline ratio)

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A = AREA	B = BORDERS	C = COASTLINE	K = 1,000 * √A / (B + C)	ANSWER	% Correct
9,984,670	8,893	202,080	14	Canada	78%
0.44	3.2	0	207	Vatican City	78%
242,900	361	12,429	38	United Kingdom	72%
1,904,569	2,830	54,716	23	Indonesia	70%
270,467	0	15,134	34	New Zealand	67%
61	39	0	200	San Marino	67%
181	0	370	36	Marshall Islands	66%
377,930	0	29,751	20	Japan	65%
12,189	0	2,528	43	Vanuatu	65%
702	0	6,112	4	Federated States of Micronesia	64%
459	0	1,519	14	Palau	63%
26	0	24	212	Tuvalu	62%
811	0	1,143	24	Kiribati	61%
323,802	2,551	25,148	20	Norway	61%
28,896	0	5,313	31	Solomon Islands	61%
342,353	0	36,289	16	Philippines	60%
300	0	644	26	Maldives	58%
13,943	0	3,542	33	Bahamas	57%
389	0	84	234	Saint Vincent and the Grenadines	54%
452	0	491	43	Seychelles	53%
5,130	0	362	197	Trinidad and Tobago	53%
430	0	97	213	Barbados	52%
2,381,741	6,343	998	210	Algeria	51%
2,040	0	177	255	Mauritius	51%
1,002,450	2,665	2,450	195	Egypt	50%
1,267,000	5,697	0	197	Niger	48%
56,594	2,197	6,268	28	Croatia	46%
131,990	1,228	13,676	24	Greece	46%
43,094	68	7,314	28	Denmark	45%
1,759,540	4,348	1,770	216	Libya	45%
17,364	535	0	246	Swaziland	44%
2,149,690	4,431	2,640	207	Saudi Arabia	42%
923,768	4,047	853	196	Nigeria	41%
45,227	633	3,794	48	Estonia	34%
527,968	1,746	1,906	198	Yemen	33%
1,104,300	5,328	0	197	Ethiopia	32%
25,713	766	0	209	Macedonia	31%
28,051	539	296	200	Equatorial Guinea	28%
390,757	3,066	0	203	Zimbabwe	28%
71,740	958	402	196	Sierra Leone	24%