What's the frequency of weekly exercise

We surveyed 27 people. There are 48.1% play the sport that they like best is 1~2 times a week. And 29.6% play the sport that they like is 3~4 times a week .And 14.8% people like doing sport that they like is more than 4 times a week . And there are even 7.4% people are hardly any exercise per week .But if you are in HK that is absolutely a normal data. Because there has no enough space to build playground .So we even can not book a place to do sports that we like.