b'Jubilee benefits 2018 2017(x US$1) Staatsolie SPCS GOw2 Total Staatsolie SPCS GOw2 TotalDefined benefit obligation as at January 1 (6,601,978) (103,300) (93,227) (6,798,505) (6,429,764) (87,307) (88,708) (6,605,779)AdjustmentofDefinedbenefitobligation (3,035,763) (54,952) - (3,090,715) - - - -Interest cost (284,190) (6,294) (11,511) (301,995) (195,105) (3,929) (9,674) (208,708)Current service cost (770,739) (19,202) (8,821) (798,762) (513,215) (11,620) (8,488) (533,323)Net benefit expense(recognized in P&L) (4,090,692) (80,448) (20,332) (4,191,472) (708,320) (15,549) (18,162) (742,031)Benefitspaid 911,474 35,693 - 947,167 962,453 - 6,895 969,348Currency translation - - 1,141 1,141 - - 883 883Experience different than assumed 405,625 5,515 (4,410) 406,730 (378,782)(444) 5,865 (373,361)Changes in assumptions 456,806 (2,991) 15,042 468,857 (47,565) - - (47,565)Sub total included in the P&L 862,431 2,524 11,773 876,728 (426,347)(444) 6,748 (420,043)Defined benefit obligation as at December 31(8,918,765)(145,531)(101,786)(9,166,082)(6,601,978)(103,300)(93,227)(6,798,505)2018 2017(x US$1) Staatsolie SPCS Total Staatsolie SPCS TotalDefined benefit obligation as at January 1 (2,838,695) (30,102) (2,868,797) (2,680,707) (29,703) (2,710,410)Interest cost (94,974) (1,294) (96,268) (89,298) (910) (90,208)Current service cost (1,270,568) (20,953) (1,291,521) (1,243,907) (12,359) (1,256,266)Net benefit expense(recognized in P&L) (1,365,542) (22,247) (1,387,789) (1,333,205) (13,269) (1,346,474)Benefitspaid 1,622,285 2,574 1,624,859 1,530,076 20,938 1,551,014Experience different than assumed (168,907) (1,916) (170,823) (354,859) (8,068) (362,927)Changes in assumptions (45,185) (1,468) (46,653) - - -Sub total included in OCI (214,092) (3,384) (217,476) (354,859) (8,068) (362,927)Defined benefit obligation as at December 31(2,796,044)(53,159)(2,849,203)(2,838,695)(30,102)(2,868,797)97'