This dimension categorises investments of the entity according to the long-term and short-term credit rating grades of the counterparty as determined by various rating agencies. Long-term ratings: Rating Grade1: Standard & Poor's AAA, AA+, AA, AA-; Moody's Aaa, Aa1, Aa2, Aa3; Fitch AAA, AA+, AA, AA-. Rating Grade2: Standard & Poor's A+, A, A-; Moody's A1, A2, A3; Fitch  A+, A, A-. Rating Grade3: Standard & Poor's BBB+, BBB, BBB-; Moody's Baa1,  Baa2, Baa3; Fitch BBB+, BBB, BBB-. Rating Grade4: Standard & Poor's BB+, BB, BB-; Moody's Ba1, Ba2, Ba3; Fitch BB+, BB, BB-. Rating Grade5: Standard & Poor's B+, B, B-; Moody's B1, B2, B3; Fitch B+, B, B-. Rating Grade6: Standard & Poor's CCC+, CCC, CCC-, CC, C, D; Moody's Caa1,  Caa2, Caa3, Ca, C; Fitch CCC+, CCC, CCC-, CC, C, D. Short-term ratings: Rating Grade1: Standard & Poor's A-1; Moody's P-1; Fitch F-1. Rating Grade2: Standard & Poor's A-2; Moody's P-2; Fitch F-2. Rating Grade3: Standard & Poor's A-3; Moody's P-3; Fitch F-3. Rating Grade4: Standard & Poor's Others; Moody's Others; Fitch Others;