What is the smallest number for old membership total?
CREATE TABLE table_29708 (
    "Conference" text,
    "Old membership total" real,
    "New membership total" real,
    "Net change" text,
    "Members added" real,
    "Members lost" real
)
SELECT MIN("Old membership total") FROM table_29708
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is the smallest number for old membership total? ### Input: CREATE TABLE table_29708 (
    "Conference" text,
    "Old membership total" real,
    "New membership total" real,
    "Net change" text,
    "Members added" real,
    "Members lost" real
) ### Response: SELECT MIN("Old membership total") FROM table_29708