b'2021 2020(x US$1) GOw2 SPCS Total GOw2 SPCS TotalDefined benefit obligation as at January 1 (530,830) (361,397) (892,227) (771,653) (363,175) (1,134,828)Interest cost (26,463) (18,185) (44,648) (26,251) (12,455) (38,706)Currentservicecost (19,034) (55,124) (74,158) (22,676) (23,872) (46,548)Net benefit expense (recognized in P&L) (45,496) (73,310) (118,806) (48,926) (36,327) (85,253)Benefitspaid 10,646-10,646 (9,854)-(9,854)Currency translation 174,673 118,920 293,593 384,232 171,561 555,793Experience different than assumed 4,322 (6,317) (1,995) (11,517) (43,420) (54,937)Changes in assumptions (575,151) (485,569) (1,060,720) (73,112) (90,036) (163,148)Sub total included in OCI (396,156) (372,965) (769,122) 299,603 38,105 337,708Defined benefit obligation as at December 31(961,836)(807,673)(1,769,509)(530,830)(361,397)(892,227)2021 2020(x US$1) Staatsolie SPCS GOw2 Total Staatsolie SPCS GOw2 TotalDefined benefit obligation as at January 1 (1,334,880) (21,549) (25,017) (1,381,446) (1,232,400) (16,035)-(1,248,435)Interest cost (47,885) (776) (899) (49,560) (45,457) (577) (671) (46,705)Currentservicecost (56,554) (4,775) (1,954) (63,283) (56,090) (1,937) (1,453) (59,480)Pastservicecost- - - - - -(24,926) (24,926)Net benefit expense (recognized in P&L) (104,439) (5,551) (2,853) (112,843) (101,547) (2,514) (27,050) (131,111)Benefitspaid 16,500- -16,500 6,000- -6,000Experience different than assumed (16,892) (542) 1,158 (16,276) (12,087) (3,647) 1,954 (13,780)Changes in assumptions (244,104) 1,752 1,429 (240,923) 5,154 647 79 5,880Sub total included in OCI (260,996) 1,210 2,587 (257,199) (6,933) (3,000) 2,033 (7,900)Defined benefit obligation as at December 31(1,683,815)(25,890)(25,283)(1,734,988)(1,334,880)(21,549)(25,017)(1,381,446)147'