urban area   country                 region  population globalization index
0     madrid     spain    community of madrid     6321398               alpha
1  barcelona     spain              catalonia     4604000             alpha -
2     lisbon  portugal          lisbon region     3035000             alpha -
3      porto  portugal           norte region     1676848             gamma -
4   valencia     spain  community of valencia     1564145               gamma

Table as JSON:
{"urban area":{"0":"madrid","1":"barcelona","2":"lisbon","3":"porto","4":"valencia"},"country":{"0":"spain","1":"spain","2":"portugal","3":"portugal","4":"spain"},"region":{"0":"community of madrid","1":"catalonia","2":"lisbon region","3":"norte region","4":"community of valencia"},"population":{"0":6321398,"1":4604000,"2":3035000,"3":1676848,"4":1564145},"globalization index":{"0":"alpha","1":"alpha -","2":"alpha -","3":"gamma -","4":"gamma"}}