After the UNESCO recognition for Indonesian batik on 2 October 2009, the Indonesian administration asked Indonesians to wear batik on Fridays, and wearing batik every Friday has been encouraged in government offices and private companies ever since. 2 October is also celebrated as National Batik Day in Indonesia. Batik had helped improve the small business local economy, batik sales in Indonesia had reached Rp 3.9 trillion (US$436.8 million) in 2010, an increase from Rp 2.5 trillion in 2006. The value of batik exports, meanwhile, increased from $14.3 million in 2006 to $22.3 million in 2010.