Pharmacist John S. Pemberton invented a soft drink in 1886 that eventually became not only an integral part of everyday life in the United States but also a symbol of consumerism worldwide. In 1929 the first Coca-Cola vending machines were installed in Germany, and in 1930, the German branch of the Coca-Cola Co. opened in Essen. Coca-Cola sales in Germany were 243,000 cases in 1934, 1 million cases in 1936, and 4.5 million cases in 1939. Germany was a growing market for Coca-Cola, along with other countries in Europe, before World War II. With the previous data given, calculate the company's sales growth rate for each time period in the following table: Years Growth Rate 1934-1936 1936-1939 1934-1939