Question: The smallest of Hawaii's eight main volcanic islands which is home to the rare flowering plant, Euphorbia skottsvergii, get's how many cm of rainfall on average annually?
Sentence (from "Euphorbia skottsbergii"): It is endemic to Hawaii, where it is found in coastal shrublands on Oʻ ahu, Molokaʻ i, Maui, and Kahoʻ olawe.
Relevant evidence: No