rea    DIV (mass + land)    Area         Name
 1      -37.48652       19.87193  North America      
 2        34.2328       17.50789  South America      
 3      -24.48111       53.01259  Eurasia            
 4       23.46257       29.65495  Africaa            
 5       11.26647        7.60098  Australia          
 6       35.50113       1.517199  Island continent   
 7      -92.71767       13.96189  Antarctic          
 8      -100.7172       11.09808  Arctic Ocean       
 9       60.19311        4.46902  Caribbean Sea      
10       3.505397        2.59613  Mediterranean Sea  
11      -25.33328      0.4968047  Black Sea          
12       23.21314       82.17786  North Pacific      
13       13.95869        42.8006  North Atlantic     
14       11.03076       74.34176  Indian Ocean       
15       3.641988       98.88635  South Pacific      
16      -18.68854       45.95402  South Atlantic     
17            NaN       143.1274  Continents         
18            NaN       362.8206  Oceans             
19     -0.1744637        509.998  Global             
20            NaN              0  Caspian Sea        
21       56.48519       2.920015  N South America    
22        29.7786       14.58787  S South America    
23       14.00571        19.8713  N Africa           
24       42.67014       9.783653  S Africa           
25       41.08751       12.26129  N Indian Ocean     
26       5.094354       62.08047  S Indian Ocean     
27      -25.42816       52.34004  N Eurasia          
28       49.22061      0.6725545  S Eurasia          
29            NaN              0  N Other water      
30            NaN              0  S Other water      
31       40.61085     0.04601057  N Island Continent 
32       35.34132       1.471189  S Island Continent 
33       32.64019        254.999  N Hemisphere       
34       -50.5139        254.999  S Hemisphere