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

### Instruction:
Where is the PPP 23164 million €?

### Inputs:
table_name: table, columns: ['Region ( NUTS 2006)', 'Total (million € )', '€ per capita (2005)', 'PPP (million €)', 'PPP € per capita', '% of EU average GDP (PPP)']

### Response:
SELECT Region ( NUTS 2006) FROM table WHERE PPP (million €) = 23164