ATHENS – The restrictions on travel and business imposed to stem the coronavirus's spread wiped out nearly all travel revenue for Greece in April, according to Bank of Greece figures.Provisional figures show travel receipts stood at 7 million euros in April, compared with 544 million euros in the same month last year, or a drop of 98.7%, Greece’s central bank said Monday.“The fall in travel receipts resulted from a 96.2% decline in inbound traveler flows and a 62.2% decrease in average expenditure per trip,” the Bank of Greece said in a statement.Greece’s economy depends heavily on tourism, which directly and indirectly accounts for around 20% of annual gross domestic product.