61,907 Esperanto dictionary entries in order of usage frequency in the Esperanto Wikipedia (dumped 2016-10-02). Dictionary entries come from
Paul Denisowski's Esperanto Dictionary Project (ESPDIC).
To learn in order of frequency, you should set the options group for the deck in the "New Cards" section to have "Show new cards in order added" selected. Then the first few words to appear should be "la, de, en, kaj, esti".
There was not a perfect 1:1 of words used in Wikipedia to words in ESPDIC. The first 38k words in the deck are in order of frequency, with the remainder being in random order.