Profit performance

QUARTERLY PROFIT
(NOK million)	Q3 2018	Q2 2018	Q1 2018	Q4 2017	Q3 2017
Net interest income	290	291	289	290	281
Other operating income	61	78	53	58	55
Total operating costs	152	150	149	144	145
Profit before impairment on loans	199	219	193	204	191
Impairment on loans, guarantees etc.	7	-5	2	-1	6
Pre-tax profit	192	224	191	205	185
Tax	43	50	50	48	46
Profit after tax	149	174	141	157	139

As a percentage of average assets
Net interest income	1.63	1.68	1.73	1.76	1.72
Other operating income	0.35	0.45	0.32	0.35	0.34
Total operating costs	0.86	0.87	0.89	0.88	0.89
Profit before impairment on loans	1.12	1.26	1.16	1.23	1.17
Impairment on loans, guarantees etc.	0.04	-0.03	0.01	-0.01	0.04
Pre-tax profit	1.08	1.29	1.15	1.24	1.13
Tax	0.24	0.29	0.29	0.29	0.28
Profit after tax	0.84	1.00	0.86	0.95	0.85