diff --git a/Readme.org b/Readme.org
index c89aa31..94bbf64 100644
--- a/Readme.org
+++ b/Readme.org
@@ -175,7 +175,6 @@ df__["値"].std()
 .
 ├── README.org
 ├── analyze_lab_assignment_survey.py
-├── analyze_lab_assignment_survey.xlsx
 └── googleform.txt
 #+end_example
 
diff --git a/analyze_lab_placement_survey.py b/analyze_lab_placement_survey.py
index 2c72537..5327d81 100755
--- a/analyze_lab_placement_survey.py
+++ b/analyze_lab_placement_survey.py
@@ -156,12 +156,14 @@ if __name__ == "__main__":
         df_r.loc[n, "GPA std"] = df__["値"].std()
     df_r[["在校生", "編入生"]] = df_r[["在校生", "編入生"]].astype(int)
     # 表示用
+    
     df_show = df_r.copy()
     df_show.index.name = "研究室"
     df_show["GPA mean"] = df_show["GPA mean"].round(1)
     df_show["GPA std"] = df_show["GPA std"].round(1)
-    print(
-        f"{'研究室':>6} "
+    print("-" * 52)    
+    print("回答者数:", df.shape[0])
+    print(f"{'研究室':>6} "
         f"{'在校生':>6} "
         f"{'編入生':>6} "
         f"{'GPA mean':>10} "