(Telecompaper) Dutch mobile service revenues contracted 6.7 percent year-on-year in the second quarter of 2013 to a total EUR 1.38 billion. According to Telecompaper's quarterly mobile monitor, the annual rate of decline is more than twice that of the same period last year, as a drop in non-voice revenue (SMS and data) added to the continued fall in voice revenues. Seasonally the second quarter is stronger than the first, but this year's quarterly growth of 0.6 percent was a third of last year's rate, with revenues increasing by only EUR 8 million. Non-voice services now contribute 40 percent of total mobile service revenue, but these are not growing fast enough to offset fully the erosion in voice revenues. The weak market performance in the first half of 2013 has led to a downgrade in Telecompaper's outlook for the Dutch mobile industry. For 2013 we now expect the Dutch market to show a decline of around 6 percent to EUR 5.5 billion in service revenue over the full year. For the period 2013-2017, the Dutch market is expected to show a negative CAGR of 2.5 percent, reaching around EUR 5.1 billion in revenues in 2017.