In 2008, the first Bhutanese GNH survey was conducted. It was followed by a second one in 2010. The third nationwide survey was conducted in 2015. The GNH survey covers all twenty districts (Dzonkhag) and results are reported for varying demographic factors such as gender, age, abode, and occupation. The first GNH surveys consisted of long questionnaires that polled the citizens about living conditions and religious behavior, including questions about the times a person prayed in a day and other Karma indicators. It took several hours to complete one questionnaire. Later rounds of the GNH Index were shortened, but the survey retained the religious behavioral indicators.