The government maintains two official exchange rates for the Syria currency, the Syrian pound (SYP) — one rate on which the budget and the value of imports, customs, and other official transactions are based, and a second set by the Central Bank of Syria on a daily basis that covers all other financial transactions. An exchange rate of about 50 SYP to US$1 was usual in the early 2000s, subject to fluctuations. The pound's official exchange rate has fallen from 47 SYP = US$1 before the start of the Syrian Civil War in March 2011 to 700 in March 2020 and 1,250 in June 2020.[11] The official rate was 515 SYP in July 2017, when the peg for the Syrian pound was changed to the IMF SDF (Special Drawing Rights),[12] though the rate tends to be quoted in relation to the US dollar.