Item	2018	2017	2016	2015
Return on equity (ROE)	10.1%	7.6%	5.5%	9.1%
Return on total assets (ROA)	8.1%	5.8%	4.3%	7.1%
Pre-tax profit margins	12.2%	11.7%	9.9%	14.5%
Turnover of total assets	0.8	0.6	0.5	0.5
Turnover of accounts receivable	11.3	6.9	4.7	5.6
Liabilities/assets ratio	19.5%	20.0%	26.3%	18.7%
Current ratio	2.3	2.2	1.7	2.5
Quick ratio	1.2	1.2	1.2	1.7