At the start of the 20th century, the main tourist interest in the Cyclades was Delos, the ancient importance of which had nourished the “tourists’” studies. The "Baedeker Guide" mentioned only Syros, Mykonos and Delos. Syros was the main port that all ships touched; Mykonos was the obligatory stopover before the visit to Delos. Syros featured two hotels worthy of their name ("Hôtel de la ville" and "Hôtel d'Angleterre"). On Mykonos, one had to content oneself with Konsolina “house” or rely on the Epistates (police official) of the Antiquities, in which case the competition between potential visitors to Delos must have been rough. The "Guide Joanne" of 1911 also insisted on Delos (treating it in 12 of 22 pages devoted to the Cyclades), but all the other important islands were mentioned, if only in a single paragraph. Meanwhile, tourist development was already noticeable on these other islands: Mykonos had a hotel at the time ("Kalymnios") and two boarding houses; other than that of Mme Konsolina (which was well established), there was also that of Mme Malamatenia. In 1933, Mykonos received 2,150 holiday-goers and 200 foreigners visited Delos and the museum on Mykonos. Mass tourism to Greece only really took off starting in the 1950s. After 1957, the revenue it generated grew 20% a year. They soon rivalled the revenue obtained from the chief raw material for export, tobacco, and then surpassed it. Today, tourism in the Cyclades is a contrasting phenomenon. Certain islands, like Naxos with its important agricultural and mining resources, or Syros, which still plays a commercial and administrative role, do not depend solely on tourism for their survival. This is less true for small, infertile rocks like Anafi or Donoussa, which numbers (2001) 120 inhabitants and six pupils in its primary school but 120 rooms for rent, two travel agencies and a bakery open only during summer. In 2005, there were 909 hotels in the Cyclades, with 21,000 rooms and 40,000 places. The main tourist destinations are Santorini (240 hotels, of which 6 have five stars) and Mykonos (160 hotels, with 8 five-star ones), followed by Paros (145 hotels, just one being five-star) and Naxos (105 hotels).