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

### Instruction:
Name the total number of index weighting % at 17 january 2013 for bouygues

### Inputs:
table_name: table, columns: ['Company', 'ICB Sector', 'Ticker symbol', 'Index weighting (%) at 17 January 2013', 'Market cap. at April 2013 (€)']

### Response:
SELECT COUNT Index weighting (%) at 17 January 2013 FROM table WHERE Company = Bouygues