Will the Dutch actually ban marriage between cousins???

This article makes it seem almost impossible....but check out this paragraph...

A driving force behind the measure is the growth in the number of Dutch residents who 'import' a spouse from the country of their parents. After years of decline, the number went up last year by thirty percent to 15,000. But the municipal records do not keep track of how many of these marriages involved cousins marrying each other. According to researchers from Leiden University, a quarter of Turks and Moroccans marry a relative. A European survey, which only looked at second-generation immigrants, indicated that just over 8 percent of Turks and 6 percent of Moroccans reported they were married to a cousin.

a 30% increase in the importation of spouses??? I thought the Dutch were making progress...