
Variable --> description
_________________________
ref_name      --> Referee's name      
apps         -->  Appereances
fouls_pg      --> Fouls per game  
fouls_tackles --> Fouls per tackle
pen_pg       -->  Penalties per game
yel_pg       --> Yellow cards per game
yel          --> Total yellow cards
red_pg       ---> Red cards per game
red          --> Total red cards
year         --> year  
season      --> season 
original_position_in_table -->  position in table in the website