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
0.44	3.2	0	207	Vatican City	80%
9,984,670	8,893	202,080	14	Canada	78%
1,904,569	2,830	54,716	23	Indonesia	72%
242,900	361	12,429	38	United Kingdom	72%
61	39	0	200	San Marino	69%
270,467	0	15,134	34	New Zealand	68%
377,930	0	29,751	20	Japan	67%
181	0	370	36	Marshall Islands	67%
702	0	6,112	4	Federated States of Micronesia	66%
12,189	0	2,528	43	Vanuatu	66%
323,802	2,551	25,148	20	Norway	64%
459	0	1,519	14	Palau	64%
342,353	0	36,289	16	Philippines	62%
28,896	0	5,313	31	Solomon Islands	62%
26	0	24	212	Tuvalu	62%
811	0	1,143	24	Kiribati	61%
300	0	644	26	Maldives	59%
13,943	0	3,542	33	Bahamas	57%
389	0	84	234	Saint Vincent and the Grenadines	54%
452	0	491	43	Seychelles	54%
2,381,741	6,343	998	210	Algeria	53%
2,040	0	177	255	Mauritius	53%
5,130	0	362	197	Trinidad and Tobago	53%
430	0	97	213	Barbados	52%
1,002,450	2,665	2,450	195	Egypt	52%
1,267,000	5,697	0	197	Niger	49%
56,594	2,197	6,268	28	Croatia	48%
131,990	1,228	13,676	24	Greece	47%
17,364	535	0	246	Swaziland	47%
43,094	68	7,314	28	Denmark	46%
1,759,540	4,348	1,770	216	Libya	46%
923,768	4,047	853	196	Nigeria	42%
2,149,690	4,431	2,640	207	Saudi Arabia	42%
45,227	633	3,794	48	Estonia	34%
1,104,300	5,328	0	197	Ethiopia	33%
527,968	1,746	1,906	198	Yemen	33%
25,713	766	0	209	Macedonia	32%
390,757	3,066	0	203	Zimbabwe	28%
28,051	539	296	200	Equatorial Guinea	26%
71,740	958	402	196	Sierra Leone	25%