shipping_tax can be a float

accounting-for-woocommerce/inc/export.php

@@ -75,6 +75,7 @@ function woocommerce_accounting_export_data() {
 
     $order_args = array(
         'limit' => -1,
+		'type' => 'shop_order',
         'status' => $order_status,
         'orderby' => 'ID',
         'order' => 'ASC',
@@ -147,7 +148,7 @@ function woocommerce_accounting_export_data() {
         $order->original_date = $order->piecedate;
 
         $order->total_tax = (float) $wcOrder->get_total_tax();
-        $order->shipping_tax = (float) intval($wcOrder->get_shipping_tax());
+        $order->shipping_tax = (float) $wcOrder->get_shipping_tax();
 
         $order->outcome = round($wcOrder->get_total(), $rounding_precision);
         $order->income_tax = round($order->total_tax > $small_number ?  $order->total_tax : 0, $rounding_precision) + round($order->shipping_tax > $small_number ?  $order->shipping_tax : 0, $rounding_precision);