Currency&colon; Rupiah (Rp; since 1945)"See also Banknotes of the rupiah" and "Indonesian rupiah". The same was true for the Thai baht, Malaysian ringgit and Indonesian rupiah. Rp 23.8 trillion rupiah (1.8 billion US dollar). Revenue was significantly increased from 800 billion to 1.6 trillion rupiah. The Riau rupiah was exchangeable as a foreign currency with the Indonesian rupiah. As of 24 September, the exchange rate still lingered at 2,990 rupiah per dollar. The rupiah (Rp) is the official currency of Indonesia. The rupiah, the Indonesian currency, took a sharp dive in value. The New Year had the rupiah begin at 5,447 per dollar. The exchange rate for the Indonesian Rupiah dropped due to political concerns. They were reportedly carrying around 6.5 billion rupiah ($US470,000). Rp is the standard abbreviation for the Indonesian rupiah. Deposits would be underwritten up to 20 million rupiah (about US$5,500). All figures are in current trillion Rupiah for 2005. The Indonesian "rupiah" is abbreviated Rp.