diff --git a/data_analysis.py b/data_analysis.py
index 17da076..443c55d 100644
--- a/data_analysis.py
+++ b/data_analysis.py
@@ -14,7 +14,7 @@ for i in range(num_iter):
     df_tmp = env_data.iloc[i * (num_time_step + 1): (i + 1) * (num_time_step + 1), 1:]
     lst_df.append(df_tmp)
 
-lst_column = lst_df[0].columns[1:]
+lst_column = lst_df[0].columns
 
 for str_col in lst_column:
     x = np.arange(num_time_step+1)
diff --git a/out_f_avg_profit.pdf b/out_f_avg_profit.pdf
index 5eeb086..e7da9d6 100644
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diff --git a/out_f_avg_yield.pdf b/out_f_avg_yield.pdf
index f030842..1194ac9 100644
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diff --git a/out_f_gini_profit.pdf b/out_f_gini_profit.pdf
index dc808f4..bc9c48f 100644
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diff --git a/out_w_avg_salary.pdf b/out_w_avg_salary.pdf
index 4181764..bf5281f 100644
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diff --git a/out_w_gini_salary.pdf b/out_w_gini_salary.pdf
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diff --git a/out_w_percent_hired.pdf b/out_w_percent_hired.pdf
index 94f50dc..daa91ed 100644
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