For the 2015 CPS ASEC 5-year Geographical Mobility package, the metropolitan mobility detailed tables are not included.  The U.S. Census Bureau transitioned to a new sample design for the CPS based on the 2010 Census. During this transition period, the CPS estimates are based partly on the 2000 sample design and partly on the new 2010 sample design. As a result, metropolitan-nonmetropolitan estimates from the 2015 ASEC are based on samples of two different designs, and do not accurately reflect the actual respective populations. Consequently, tables showing metropolitan-nonmetropolitan data are not provided during this period.