Statistics for Top 5 Longest Rivers by Continent

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Africa	Km/mi	River	% Correct
1	6,650/4,132	Nile	98%
1	6,400/3,977	Amazon–Ucayali–Apurímac	93%
1	6,275/3,902	Mississippi–Missouri–Jefferson	92%
2	2,888/1,795	Danube–Breg	90%
2	4,700/2,920	Congo–Chambeshi (Zaïre)	89%
1	3,645/2,266	Volga	89%
3	5,464/3,395	Yellow River	85%
1	6,300/3,915	Yangtze	81%
3	4,184/2,600	Niger	78%
4	2,574/1,599	Zambezi	72%
1	3,672/2,282	Murray–Darling	67%
4	3,057/1900	Rio Grande	65%
2	4,880/3,030	Paraná–Rio de la Plata	62%
4	5,410/3,361	Ob–Irtysh	58%
3	3,058/1900	Saint Lawrence–Niagara–Detroit–Saint Clair–Saint Marys–Saint Louis	50%
5	4,444/2,761	Amur–Argun	47%
2	4,241/2,635	Mackenzie–Slave–Peace–Finlay	44%
2	5,539/3,442	Yenisei–Angara–Selenge	36%
4	2,287/1,421	Dnieper	35%
5	1,870/1,162	Don	34%
3	2,428/1,509	Ural	29%
4	3,380/2,100	Madeira–Mamoré–Grande–Caine–Rocha	19%
3	3,650/2,658	Tocantins–Araguaia	14%
5	2,570/1,597	Nelson–Saskatchewan	12%
5	3,211/1995	Purús	11%
5	2,270/1,411	Ubangi–Uele	11%
4	1,420/882	Cooper–Barcoo	7%
2	1,600/994	Murrumbidgee River	6%
3	1,440/895	Lachlan River	5%
5	1,400/870	Warburton–Georgina	3%