Percent Increase by Day in the Number of Confirmed Covid-19 Cases by Day From April 11th to April 19th of the top 25 Nations in Total Cases
Nation April-11 April-12 April-13 April-14 April-15 April-16 April-17 April-18 April-19 Total Cases
United States 8% 7% 6% 6% 4% 4% 5% 5% 5%             695,353
Spain 3% 3% 3% 2% 2% 3% 3% 3% 2%             191,726
Italy 3% 3% 3% 2% 2% 2% 2% 2% 2%             175,925
Germany 4% 2% 2% 2% 2% 2% 3% 3% 2%             139,897
United Kingdom 8% 12% 7% 5% 6% 5% 5% 5% 5%             114,221
France 5% 3% 2% 3% 6% 3% 2% 0% 2%             110,721
China 0% 0% 0% 0% 0% 0% 0% 0% 0%               84,201
Turkey 11% 11% 9% 7% 7% 7% 7% 6% 5%               82,329
Iran 3% 3% 2% 2% 2% 2% 2% 2% 2%               80,868
Russian Federation 14% 16% 16% 15% 16% 14% 15% 15% 16%               42,853
Belgium  7% 5% 6% 3% 2% 8% 4% 4% 3%               37,183
Brazil 12% 10% 6% 7% 6% 8% 12% 7% 11%               33,682
Canada 7% 6% 5% 5% 5% 5% 5% 6% 6%               32,400
Netherlands 6% 6% 5% 4% 3% 3% 4% 4% 4%               31,589
Switzerland 3% 2% 2% 1% 1% 2% 1% 1% 1%               27,322
Portugal 11% 3% 4% 2% 3% 4% 4% 1% 3%               19,685
India 16% 12% 10% 13% 10% 8% 8% 7% 9%               15,712
Ireland 9% 10% 8% 10% 8% 6% 9% 5% 6%               14,758
Austria 2% 2% 1% 1% 1% 1% 1% 1% 0%               14,662
Sweden  6% 5% 3% 4% 5% 4% 5% 5% 5%               13,822
Peru 21% 12% 16% 10% 0% 37% 11% 18% 0%               13,489
Israel 4% 4% 3% 3% 6% 3% 3% 2% 2%               13,107
Republic of Korea 0% 0% 0% 0% 0% 0% 0% 0% 0%               10,661

Zero represents a percentage increase so low that it averages to 0%.   In some cases it may be due to the lack of reporting data for that day.