[USER (data scientist)]: Now, I want to make a line chart to compare win/loss ratios across years and surface types. Please generate the code with the output in plot type.
My template of code snippet is:

---BEGIN CODE TEMPLATE---

import pandas as pd
import matplotlib.pyplot as plt  
import seaborn as sns
from decision_company import read_csv_file, convert_to_datetime, create_dataframe, col_copy, concatenate_objects, extract_year, bind_dataframe, aggregate_data, reset_index, create_figure, draw_lineplot, set_plot_title, set_plot_ylabel, show_plots, linear_regression

atp_tennis = read_csv_file('atp_tennis.csv')

create_figure(figsize=(12, 6))  

# YOUR SOLUTION BEGIN:
<code1>
[GENERATE YOUR CODE] 
</code1>
# YOUR SOLUTION END

# save data
save_plot("./pred_result/lineplot.png")
show_plot()  

---END CODE TEMPLATE---

[YOU (AI assistant)]: Sure thing! Here's how you can create the line chart: 

# MY SOLUTION BEGIN:
