 In 2012, the Census reported that 1,293 Kimberly Process certificates were issued, including countries such as Ukraine, Singapore, and New Zealand.As a result of the implementation of the CDTA in accordance with KPCS, in 2012 Census reported only $462.1million worth of rough diamonds, a 28.5% decrease from the 2011 report of $646.7 million.The Census Bureau in 2012 reported that the United States received rough diamond imports from approximately 24 KP participants including Liberia, Mexico, Democratic Republic of Congo, India, Israel, and Japan.