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

### Instruction:
What is the total number of population in the year 2005 where the population density 35.9 (/km 2)?

### Inputs:
table_name: table, columns: ['INEGI code', 'Municipality', 'Municipal Seat', 'Area (km 2 )', 'Population (2005)', 'Population density (/km 2 )', 'Human Development Index (2000)']

### Response:
SELECT COUNT Population (2005) FROM table WHERE Population density (/km 2 ) = 35.9