What was the sum for the 1990s, that has 0 in the 1900s?
CREATE TABLE table_7585 (
    "1900s" real,
    "1920s" real,
    "1930s" real,
    "1940s" real,
    "1950s" real,
    "1960s" real,
    "1970s" real,
    "1980s" real,
    "1990s" real,
    "2000s to date" real,
    "Total to date" real
)
SELECT SUM("1990s") FROM table_7585 WHERE "1900s" < '0'
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 was the sum for the 1990s, that has 0 in the 1900s? ### Input: CREATE TABLE table_7585 (
    "1900s" real,
    "1920s" real,
    "1930s" real,
    "1940s" real,
    "1950s" real,
    "1960s" real,
    "1970s" real,
    "1980s" real,
    "1990s" real,
    "2000s to date" real,
    "Total to date" real
) ### Response: SELECT SUM("1990s") FROM table_7585 WHERE "1900s" < '0'