EGYPT is optimistic about welcoming more visitors this year with numbers increasing steadily since January to around half a million tourists a month, Tourism and Antiquities Minister Khaled El-Enany told Reuters. Tourism revenue, an important source of foreign currency for Egypt, plunged by 70% in 2020 due to the coronavirus pandemic. Tourism usually accounts for up to 15% of the country's gross domestic product. Monthly tourism revenues stood at about $500 million in April, half of what they were before the pandemic. But Egypt hopes for a recovery by the end of the year when it aims to have vaccinated…