https://m.huffpost.com/us/entry/5649968
https://international.commonwealthfund.org/countries/germany/
https://tradingeconomics.com/cuba/urban-population-percent-of-total-wb-data.html
https://tradingeconomics.com/germany/urban-population-percent-of-total-wb-data.html
https://www.google.ca/search?client=safari&channel=iphone_bm&ei=v8UlW_nOJYm90PEPgLuXmAM&q=american+currency+worth&oq=american+currency+worth&gs_l=mobile-gws-wiz-serp.3..0l2j0i22i30l2.47846.66813..67598...5....159.1997.1j15......0....1j5.......0..0i71j46i67j0i67j46i131j0i70i258j33i160j0i8i13i30j0i13j0i13i30.41prCR4fOro%3D
https://www.google.ca/search?q=what+is+german+currency+worth&client=safari&channel=iphone_bm&prmd=sniv&source=lnms&sa=X&ved=0ahUKEwj91eqb0NnbAhVCHTQIHbBxAYcQ_AUICSgA&biw=320&bih=372&dpr=2
https://tradingeconomics.com/cuba/population-density-people-per-sq-km-wb-data.html
https://www.indexmundi.com/cuba/demographics_profile.html
https://www.indexmundi.com/germany/demographics_profile.html