| 36th Issue of Straight Bonds | 
            10,000 | 
            0.250% | 
            7 years | 
            October 2019 | 
            October 2026 | 
          
          
            | 38th Issue of Straight Bonds | 
            10,000 | 
            0.240% | 
            5 years | 
            December 2020 | 
            December 2025 | 
          
          
            | 41st Issue of Straight Bonds | 
            21,000 | 
            0.540% | 
            5 years	 | 
            August 2022 | 
            August 2027 | 
          
          
            | 42nd Issue of Straight Bonds | 
            9,000 | 
            0.850% | 
            10 years | 
            August 2022 | 
            August 2032 | 
          
          
            | 43rd Issue of Straight Bonds | 
            10,000 | 
            0.400% | 
            3 years | 
            January 2024 | 
            January 2027 | 
          
          
            | 44th Issue of Straight Bonds | 
            25,000 | 
            0.629% | 
            5 years | 
            January 2024 | 
            January 2029 | 
          
          
            | 45th Issue of Straight Bonds | 
            5,000 | 
            0.897% | 
            7 years | 
            January 2024 | 
            January 2031 | 
          
          
            | 46th Issue of Straight Bonds | 
            20,000 | 
            1.211% | 
            5 years | 
            January 2025 | 
            January 2030 | 
          
          
            | Total | 
            110,000 | 
            - | 
            - | 
            - | 
            - |