Odoo 10 - Split taxes in sale order

When products have different taxes (i.e. different VAT % values), Odoo group everything when displaying the tax in the total.

How can I get the subtotals for each tax (i.e. VAT 10%, VAT 20%, etc.)?

                    <t t-foreach="doc._get_tax_amount_by_group()" t-as="amount_by_group">
                        <tr>
                            <td><span t-esc="amount_by_group[0] or 'Taxes'"/></td>
                            <td class="text-right">
                                <span t-esc="amount_by_group[1]"
                                    t-options='{"widget": "monetary", "display_currency": doc.pricelist_id.currency_id}'/>
                            </td>
                        </tr>
                    </t>