Naiknya NPI ini didorong oleh penguatan nilai tukar rupiah secara rata-rata mencapai Rp8.968 per dolar AS atau terapresiasi 1,5 persen dari kuartal pertama rata-rata Rp9.102 per dolar AS.
He said the rupiah which appreciated by an average of 1.5 percent to Rp8,968 per dollar in the second quarter of 2007 from Rp9,102 per dollar a quarter earlier had raised the balance of payment.