(Telecompaper) Dutch mobile service revenues contracted for a second year in a row in 2012, falling 4.5 percent to EUR 5.8 billion, according to market researcher Telecompaper. The sharp drop in voice revenue after regulatory price cuts was again the cause of lower service revenues in 2012. While revenues from mobile data services are still growing, the rate of growth has slowed to single digits, meaning data services cannot fully compensate for the drop in voice revenues. According to the quarterly report, mobile service revenue in the last three months of 2012 decreased 6.8 percent year-on-year to EUR 1.4 billion and fell by 2.3 percent compared to Q3 2012. For 2013, Telecompaper expects the Dutch market to show a decline of 2-3 percent to around EUR 5.6 billion in service revenue. For the period 2013-2017, the market researcher lowered its outlook and now expects the Dutch market to be flat to slightly negative, with a CAGR of -1 percent to around EUR 5.5 billion in revenue in 2017. The downgrade in the forecast is due to expected late effects of the economic slowdown, continued regulation and a larger impact from the threats of OTT and Wi-Fi services.