rank     metropolitan area          country  population  area (km square)  population density (people / km square)
0     1                 tokyo            japan    32450000              8014                                     4049
1     2                 seoul      south korea    20550000              5076                                     4048
2     3       mumbai (bombay)            india    20900000              8100                                     7706
3     4               jakarta        indonesia    18900000              5100                                     3706
4     5              shanghai            china    16650000              5177                                     3216
5     7  hong kong - shenzhen  hong kong china    15800000              3051                                     5179
6     8               beijing            china    12500000              6562                                     1905

Table as JSON:
{"rank":{"0":1,"1":2,"2":3,"3":4,"4":5,"5":7,"6":8},"metropolitan area":{"0":"tokyo","1":"seoul","2":"mumbai (bombay)","3":"jakarta","4":"shanghai","5":"hong kong - shenzhen","6":"beijing"},"country":{"0":"japan","1":"south korea","2":"india","3":"indonesia","4":"china","5":"hong kong china","6":"china"},"population":{"0":32450000,"1":20550000,"2":20900000,"3":18900000,"4":16650000,"5":15800000,"6":12500000},"area (km square)":{"0":8014,"1":5076,"2":8100,"3":5100,"4":5177,"5":3051,"6":6562},"population density (people \/ km square)":{"0":4049,"1":4048,"2":7706,"3":3706,"4":3216,"5":5179,"6":1905}}