Profit performance

QUARTERLY PROFIT (NOK million)	Q4 2019	Q3 2019	Q2 2019	Q1 2019	Q4 2018
Net interest income	82	80	77	69	70
Other operating income	-4	2	-2	1	-1
Total operating costs	12	10	13	10	10
Profit before impairment on loans	66	72	62	60	59
Impairment on loans	1	-10	-1	-1	1
Pre tax profit	65	82	63	61	58
Tax	4	18	13	14	16
Profit after tax	61	64	50	47	42

As a percentage of average assets:
Net interest income	1.22	1.28	1.21	1.13	1.17
Other operating income	-0.06	0.03	-0.03	0.02	-0.01
Total operating costs	0.18	0.16	0.20	0.17	0.17
Profit before impairment on loans	0.98	1.15	0.98	0.98	0.99
Impairment on loans	0.01	-0.16	-0.02	-0.01	0.01
Pre tax profit	0.97	1.31	1.00	0.99	0.98
Tax	0.06	0.29	0.22	0.22	0.28
Profit after tax	0.91	1.02	0.78	0.77	0.70

Average total assets (NOK million)	26 891	25 223	25 142	24 582	23 794

ACCUMULATED PROFIT FOR THE YEAR (NOK million)	31.12.2019	31.12.2018
Net interest income	308	274
Other operating income	-3	-1
Total operating costs	45	42
Profit before impairment on loans	260	231
Impairment on loans	-11	1
Pre tax profit	271	230
Tax	49	56
Profit after tax	222	174

As a percentage of average assets:
Net interest income	1.21	1.15
Other operating income	-0.01	0.00
Total operating costs	0.18	0.18
Profit before impairment on loans	1.02	0.97
Impairment on loans	-0.04	0.00
Pre tax profit	1.06	0.97
Tax	0.19	0.24
Profit after tax	0.87	0.73

Average total assets (NOK million)	25 460	23 834