user: Question:  how many equivalent daily inflation rate with time required for prices to double being 3.7 days
Columns: ['Country', 'Currency name', 'Month with highest inflation rate', 'Highest monthly inflation rate', 'Equivalent daily inflation rate', 'Time required for prices to double']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Hungary', 'Hungarian pengő', 'July 1946', '4.19 × 10 16 %', '207.19%', '15 hours']
SQL:

assistant: SELECT COUNT("Equivalent daily inflation rate") FROM "Table" WHERE "Time required for prices to double" = '3.7 days';