Which world flags have been in continuous use the longest:
1. Denmark ๐ฉ๐ฐ: 1625
2. Netherlands ๐ณ๐ฑ: 1660
3. Nepal ๐ณ๐ต: 1743
4. United Kingdom ๐ฌ๐ง: 1801
5. Chile ๐จ๐ฑ: 1817
6. Argentina ๐ฆ๐ท: 1818
7. Peru ๐ต๐ช: 1825
8. Uruguay ๐บ๐พ: 1828
9. France ๐ซ๐ท: 1830
10. Belgium ๐ง๐ช: 1831
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11. Tunisia ๐น๐ณ: 1831
13. Turkey ๐น๐ท: 1844
22. Japan ๐ฏ๐ต: 1870
26. South Korea ๐ฐ๐ท: 1883
27. Switzerland ๐จ๐ญ: 1889
29. Norway ๐ณ๐ด: 1899
30. Australia ๐ฆ๐บ: 1901
33. Sweden ๐ธ๐ช: 1906
44. Germany ๐ฉ๐ช: 1918
54. Italy ๐ฎ๐น: 1943
59. India ๐ฎ๐ณ: 1947
60. Pakistan ๐ต๐ฐ: 1947
63. China ๐จ๐ณ: 1949
78. Nigeria ๐ณ๐ฌ: 1960
82. USA ๐บ๐ธ: 1960
94. Canada ๐จ๐ฆ: 1965
105. Mexico ๐ฒ๐ฝ: 1968
112. UAE ๐ฆ๐ช: 1971
113. Bangladesh ๐ง๐ฉ: 1972
118. Saudi Arabia ๐ธ๐ฆ: 1973
140. Spain ๐ช๐ธ: 1981
157. Russia ๐ท๐บ: 1991
160. Brazil ๐ง๐ท: 1992
168. Ukraine ๐บ๐ฆ: 1992
172. South Africa ๐ฟ๐ฆ: 1994
187. Serbia ๐ท๐ธ: 2004
188. Democratic Republic of the Congo ๐จ๐ฉ: 2006
189. Lesotho ๐ฑ๐ธ: 2006
190. Venezuela ๐ป๐ช: 2006
191. Iraq ๐ฎ๐ถ: 2008
192. Kosovo ๐ฝ๐ฐ: 2008
193. Myanmar ๐ฒ๐ฒ: 2010
194. Libya ๐ฑ๐พ: 2011
195. South Sudan ๐ธ๐ธ: 2011
196. Malawi ๐ฒ๐ผ: 2012
197. Mauritania ๐ฒ๐ท: 2017