The yields on a Prologis Share basis were as follows: FFO, as modified by Prologis attributable to common stockholders/unitholders ("FFO, as modified by Prologis"); Core FFO attributable to common stockholders/unitholders ("Core FFO"); AFFO attributable to common stockholders/unitholders ("AFFO"); (collectively referred to as "FFO"). FFO is a non-GAAP financial measure that is commonly used in the real estate industry, with net earnings as the most directly comparable GAAP measure. The National Association of Real Estate Investment Trusts ("NAREIT") defines FFO as earnings computed under GAAP to exclude depreciation and gains and losses from sales net of any related tax, along with impairment charges, of previously depreciated properties.