CREATE TABLE table_49515 ("Poll Source" TEXT, "Dates administered" TEXT, "Democrat: Vivian Davis Figures" TEXT, "Republican: Jeff Sessions" TEXT, "Lead Margin" FLOAT)

What is the date administered when Vivian Davis Figures was at 37%?
SELECT "Dates administered" FROM table_49515 WHERE "Democrat: Vivian Davis Figures" = '37%'
SELECT "Dates administered" FROM "table_49515" WHERE "Democrat: Vivian Davis Figures" = '37%'