The source adds the following information: "Respondents were asked four questions about religion. For each of the four questions, respondents who expressed a positive view (e.g., agree religion gives meaning and purpose to their life, or disagree that religion causes more harm than good) received a score of 1, while those who expressed a negative view (e.g., agree science makes religion unnecessary in their life, or disagree that religion helps them choose between right and wrong) were given a score of minus 1. Those who said “don’t know” or declined to answer were given a score of 0. Cumulative scores of 2 to 4 are coded as positive views toward religion, scores of minus 2 to minus 4 are coded as negative, and scores of minus 1 to 1 are coded as mixed. See Appendix A: Scaling and regression analysis for additional details on the scale. Figures may not add to 100% due to rounding".