Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the 1930 population when the 2006 est. is less than 44,726 in the county of frio?

### Inputs:
table_name: table, columns: ['County', '1900', '1930', '1950', '2000', '2006 est.']

### Response:
SELECT SUM 1930 FROM table WHERE 2006 est. < 44,726 AND County = frio