As such , it covers approximately NUMBER@1 km ² -LRB- NUMBER@2 sq mi -RRB- and is inhabited by about NUMBER@3 million people -LRB- LOCATION@1 : NUMBER@4 million , LOCATION@2 : NUMBER@5 million , LOCATION@3 : NUMBER@6 million , and LOCATION@4 : NUMBER@7 million -RRB- .

The greater region covers approximately NUMBER@1 km ² and is inhabited by about NUMBER@8 million people -LRB- LOCATION@1 : NUMBER@9 million , LOCATION@2 : NUMBER@5 million , LOCATION@3 : NUMBER@6 million , and LOCATION@4 : NUMBER@7 million -RRB- .
