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

### Instruction:
what is the highest % hydropower when % coal is 4.9 and % nuclear power is more than 0?

### Inputs:
table_name: table, columns: ['Country', 'Electricity production (Kw/h, billion)', '% Coal', '% Natural gas', '% Oil', '% Hydropower', '% Other renewable', '% Nuclear power']

### Response:
SELECT MAX % Hydropower FROM table WHERE % Coal = 4.9 AND % Nuclear power > 0