pre_text: REVENUE The sales cycle from quotation to shipment for our Front-end equipment generally takes several months, depending on capacity utilization and the urgency of the order. Usually, acceptance is within four months after shipment. The sales cycle is longer for equipment that is installed at the customer’s site for evaluation prior to sale. The typical trial period ranges from six months to two years after installation. Our revenues are concentrated in Asia, the United States and Europe. The following table shows the geographic distribution of our revenue for 2018 and 2019:
table: Year ended December 31
table: (EUR million) 2018 2019
table: United States 175.9 21.5% 339.5 26.4%
table: Europe 165.6 20.2% 126.2 9.8%
table: Asia 476.6 58.3% 818.2 63.7%
table: 818.1 100.0% 1,283.9 100.0%
question: Analyse this data from a financial earnings document. What is the average revenue for United States in 2018 and 2019?