Of the respondents, 47.9% are male and 52.1% are female. By age, 16.7% of respondents are 18 to 29 years old, 16.3% are 30 to 39 years old, 19.6% are 40 to 49 years old, 20.3% are 50 to 59 years old, and 27.1% are 60 or older (N = 414). By educational level, 47.2% of the respondents are high school graduates or below, whereas 52.8% (N = 805) attended and graduated from college. Finally, in terms of monthly household income, 15.5% earn less than 2 million won, 17.2% earn between 2 and 3 million won, 21.4% earn between 3 and 4. 1 million won, 16.5% earn between 4 to 5 million won, 10.5% earn between 5 to 6 million won, 7.5% earn between 6 to 7 million won, and 11.4% earn 7 million won or more.