This excel sheet is one of the cheat sheets, a part of the FIA database which you can download and use at this link https://www.fs.fed.us/pnw/rma/fia-topics/inventory-data
Figure 47: Dominant sources of GHGs in the Cook Islands, 2006. (Cook Islands Second National Communication under the UNFCCC, 2011)
Forest Area from Source: Oliver, W. 1999 in FAO Global Forest Resource Assessment 2010, Cook Islands.