What is the dilution ratio of Nippon Paint Aqua Primer?

The dilution ratio of Nippon Paint Aqua Primer is:

For Wood & Metal surfaces: Up to 20% by volume with clean, potable water. Stir well before use.

For Masonry surfaces: Up to 50% by volume with clean, potable water. Stir well before use.

For Interiors: Up to 50% by volume with clean, potable water. Stir well before use.