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

### Instruction:
When itogon, benguet is the city/municipality and 1st class is the income classification how many measurements of population in 2010?

### Inputs:
table_name: table, columns: ['City/Municipality', 'Population (2010)', 'Area (km²)', 'Pop. density (per km²)', 'Income Classification']

### Response:
SELECT COUNT Population (2010) FROM table WHERE Income Classification = 1st Class AND City/Municipality = Itogon, Benguet