Adult Cathiolic Afiliation % and Weekly Mass Attendance % in Selected Nations
World Values Survey (National survey Catholic N>=100), 2000-Present
Percentage of adults self-identifying as Catholic and the percentage of these respondents who attend Mass once a week or more often

Nation
2000-2004
2005-2009
2010-2014
 
Affiliation %
Attend %
Affiliation %
Attend %
Affiliation %
Attend %
Albania 58.0% 24.3%
Andorra 55.1% 9.6%
Argentina 78.4% 23.8% 75.5% 21.0%
Australia 23.0% 24.3% 22.5% 19.2%
Belarus 10.5% 29.9%
Bosnia and Herzegovina 12.8% 54.6%
Brazil 60.3% 44.8%
Burkina Faso 30.8% 81.4%
Canada 37.3% 30.5% 37.3% 28.5%
Chile 54.0% 38.3% 61.3% 24.9% 63.8% 26.0%
Colombia 74.1% 47.6% 61.3% 53.3%
Ecuador 62.6% 49.2%
France 41.6% 12.0%
Germany 21.0% 21.7% 26.6% 20.3%
Ghana 20.8% 83.1% 13.5% 85.4%
Guatemala 55.9% 71.0%
Hungary 47.2% 11.0%
Italy 87.5% 31.2%
Lebanon 21.8% 56.7%
Mexico 73.5% 62.3% 72.2% 50.6% 69.6% 50.1%
Netherlands 24.5% 22.5% 17.6% 34.9%
New Zealand 13.7% 22.3% 12.7% 37.3%
Nigeria 19.1% 92.2%
Peru 82.3% 45.9% 70.4% 39.1%
Philippines 71.8% 54.1% 69.0% 60.9%
Poland 94.0% 59.8% 92.3% 54.9%
Romania 7.5% 57.4%
Rwanda 52.3% 95.0% 55.7% 74.2%
Slovenia 65.1% 26.3% 65.0% 21.6%
South Africa 11.2% 61.3% 12.1% 57.5%
South Korea 13.8% 53.6% 21.2% 47.2% 15.7% 59.0%
Spain 80.8% 28.8% 79.7% 19.0% 72.3% 17.4%
Switzerland 36.6% 17.1%
Tanzania 28.2% 88.5%
Trinidad and Tobago 20.1% 41.9% 19.9% 44.3%
Uganda 35.5% 79.5%
United Kingdom 10.9% 39.2%
Uruguay 33.8% 17.4% 23.7% 15.3%
Venezuala 65.6% 35.2%
Zambia 34.2% 70.3%
Zimbabwe 17.0% 76.9% 21.4% 84.5%
World Values Survey question: How often do you attend religious services these days?
Mass attendance percentages represent those adult Catholics responding "once" or "more than once a week."