: 0.14664   3rd Qu.: 1.5365   3rd Qu.: 0.7756  
#&gt;  Max.   : 2.835377   Max.   : 2.73655   Max.   : 3.0681   Max.   : 1.8034  
#&gt;       US60               US90               US210             US390         
#&gt;  Min.   :-2.79321   Min.   :-2.492454   Min.   :-2.6174   Min.   :-1.85720  
#&gt;  1st Qu.:-0.60103   1st Qu.: 0.000062   1st Qu.:-0.1060   1st Qu.:-0.45891  
#&gt;  Median :-0.35687   Median : 0.109220   Median : 0.5719   Median : 0.04641  
#&gt;  Mean   :-0.33125   Mean   : 0.232778   Mean