Profit performance - Group

Amounts in NOK million	Q4 2017	Q3 2017	Q2 2017	Q1 2017	Q4 2016
QUARTERLY PROFIT
Net interest income	290	281	268	261	273
Other operating income	58	55	63	66	45
Total operating costs	144	145	151	150	143
Profit before impairment on loans	204	191	180	177	175
Impairment on loans, guarantees etc.	-1	6	6	2	22
Pre tax profit	205	185	174	175	153
Tax	48	46	44	44	40
Profit after tax	157	139	130	131	113

As a percentage of average assets
Net interest income	1.76	1.72	1.71	1.69	1.79
Other operating income	0.35	0.34	0.40	0.43	0.30
Total operating costs	0.88	0.89	0.96	0.97	0.94
Profit before impairment on loans	1.23	1.17	1.15	1.15	1.15
Impairment on loans, guarantees etc.	-0.01	0.04	0.03	0.01	0.14
Pre tax profit	1.24	1.13	1.12	1.14	1.01
Tax	0.29	0.28	0.28	0.28	0.26
Profit after tax	0.95	0.85	0.84	0.86	0.75