Environmental Accounts: Material Flow Account Main indicators of flow materials Absolute indicators by type of indicator and years Units: tonnes ,2012,2011,2010,2009,2008, Direct Material Input (DMI),561,471,532,656,395,609,715,334,961,778,106,916,938,048,849, Direct Material Input (DMI)- Variation rate (year 2008=100),59.86,69.97,76.26,82.95,100.00, Domestic material consumption (DMC),413,989,209,517,696,814,587,361,821,660,515,518,810,644,540, Domestic material consumption (DMC) Variation rate (year 2008=100),51.07,63.86,72.46,81.48,100.00, Phyisical Trade Balance (PTB) = Imports - Exports,86,771,624,94,407,569,105,815,301,114,417,977,149,313,632, Phyisical Trade Balance (PTB) = Variation rate (year 2008=100),58.11,63.23,70.87,76.63,100.00, Notes: Source: National Statistics Institute