STOCKHOLM, Sweden--(BUSINESS WIRE)--July 20, 2006-- Operating income for the second quarter increased by 41% to SEK 33.1 million (23.4). This much improved operating result was due to the strong sales performance and an improved gross margin. The operating margin in the second quarter was 20.5% (17.6). Operating income in the first half of 2006 increased by 72% to SEK 64.0 million (37.3).