|   Variable  |       N  |       %  |    |
|   Gender  |       Male  |       3.903  |       28.2  |    
|   Female  |       9.919  |       71.8  |    |
|   Geographical location  |       Wuhan City  |       313  |       2.3  |    
|   Hubei province (not Wuhan)  |       489  |       3.5  |    |
|   Rest of China  |       13.022  |       94.2  |    |
|   Survey method  |       |       8.955  |       64.8  |    
|   Cell-phone  |       4.767  |       34.5  |    |
|   Hyperlink  |       100  |       0.7  |    |
|   Education  |       Junior high school or less  |       1025  |       7.4  |    
|   High school/vocational  |       1092  |       7.9  |    |
|   Undergraduate education  |       11.307  |       81.8  |    |
|   Graduate school  |       398  |       2.9  |    |
|   Occupational Group  |       Student  |       10.986  |       79.5  |    
|   Professional/technical  |       539  |       3.9  |    |
|   Government/public service  |       473  |       3.4  |    |
|   Medical  |       392  |       2.8  |    |
|   Retail/commercial worker  |       256  |       1.9  |    |
|   First responder  |       171  |       1.2  |    |
|   Other  |       1.005  |       7.3  |    |