According to an independent in-depth interviewing by Radboud University and Vrije Universiteit Amsterdam in 2006, 34% of the Dutch population identified as a Christian, decreasing till in 2015 almost 25% of the population adhered to one of the Christian faiths (11.7% Roman Catholic, 8.6% PKN, 4.2% other small Christian denominations), 5 percent is Muslim and 2 percent adheres to Hinduism or Buddhism, approximately 67.8% of the population in 2015 has irreligion, up from 61% in 2006, 53% in 1996, 43% 1979 and 33% in 1966. The Sociaal en Cultureel Planbureau (Social and Cultural Planning Agency, SCP) expects the number of non-affiliated Dutch to be at 72% in 2020.

Question: How many places conducted an independent in-depth interview?
Answer: 2

Question: How many different religions were found?
Answer: 6

Question: How many different years do they show the population irreligion?
Answer: 5

Question: Which religions did the least amount of people associate with?
Answer: Hinduism or Buddhism

Question: How many different religions did the least amount of people associate with?
Answer: 2

Question: What is the abbreviation of Sociaal en Cultureel Planbureau?
Answer: SCP

Question: In which year did less Dutch people identify as Christian, 2015 or 2006?
Answer: 2015

Question: How many percentage less people identified as Christian in 2015 compared to 2006?
Answer: 9

Question: Did more people identify as PKN or as Roman Catholic in 2015?
Answer: Roman Catholic

Question: How many more percent of people identify as Christian than Muslim?
Answer: 20

Question: How many percent has the amount of population who identify as irreligion increase between 2006 and 2015?
Answer: 6.8

Question: How many years did it take for the population that identified as Christian to decrease from 34% to 25%?
Answer: 9

Question: How many more percentage points of the population identified as Roman Catholic than PKN?
Answer: 3.1

Question: How many percent were not Roman Catholic?
Answer: 88.3

Question: How many percent were not Roman PKN?
Answer: 91.4

Question: How many percent were not other small Christian denominations?
Answer: 95.8

Question: How many percent were not Muslim?
Answer: 95

Question: How many percent has the numbers of people identifiy as irreligion changed from its lowest point to its highest point?
Answer: 34.8

Question: How many percent less of the population identified as Christian in 2015 compared to 2006?
Answer: 9

Question: How many more of the Dutch population adhere to irreligion than Hinduism?
Answer: 65.8

Question: What are all the religion the have a higher percentage  than smaller Christian denominations?
Answer: Roman Catholic

Question: Which year of the Dutch population had the highest percentage of irreligion, 2015 or 2006?
Answer: 2015

Question: How many percentage did irreligion increase from 1966 to 2015?
Answer: 49

Question: How many more percentage will non-affiliated Dutch increase from 2015 to 2020?
Answer: 4.2

Question: How many years had the Dutch population increased in percentage for irreligion 1966-2020?
Answer: 54