pivot = data.groupby('platform')['total_sales'].agg(sum).sort_values(ascending=False).head()
display(pivot)
    
top_five=['PS2', 'X360','PS3' ,'Wii' ,'DS' ]

for i in top_five:
    data.query('platform == @i').plot(x='year_of_release',y='total_sales',kind='scatter', title=i)