what are all the districts?
anse la raye, praslin, castries, choiseul, dennery, forest reserve, gros islet, laborie, micoud, soufriere, vieux fort, saint lucia
what is the density of each?
210, 119, 776, 206, 182, 0, 196, 210, 220, 144, 371, 256
and which district has the highest density?
castries