|   Variables  |       How do you perceive the ventilation of the eye clinic?  |    ||||
|   Age (At Last Birthday)  |       Very Inadequate  |       Inadequate  |       Uncertain  |       Adequate  |       Very Adequate  |    
|   19 Years and Less  |       3 (7.3%)  |       6 (14.6%)  |       3 (7.3%)  |       18 (43.9%)  |       11 (26.8%)  |    
|   20 - 29  |       3 (7.7%)  |       5 (12.8%)  |       5 (12.8%)  |       21 (53.8%)  |       5 (12.8%)  |    
|   30 - 39  |       1 (2.3%)  |       9 (20.5%)  |       3 (6.8%)  |       26 (59.1%)  |       5 (11.4%)  |    
|   40 - 49  |       3 (6.0%)  |       13 (26.0%)  |       6 (12.0%)  |       16 (32.0%)  |       12 (24.0%)  |    
|   50 - 59  |       4 (5.6%)  |       11 (15.3%)  |       2 (2.8%)  |       41 (56.9%)  |       14 (19.4%)  |    
|   60 - 69  |       2 (3.3%)  |       4 (6.7%)  |       6 (10.0%)  |       35 (58.3%)  |       13 (21.7%)  |    
|   70 and Above  |       0 (0.0%)  |       9 (21.4%)  |       4 (9.5%)  |       25 (59.5%)  |       4 (9.5%)  |    
|   Sex  |       
  |    ||||
|   Male  |       6 (4.7%)  |       25 (19.7%)  |       10 (7.9%)  |       67 (52.8%)  |       19 (15.0%)  |    
|   Female  |       10 (4.5%)  |       32 (14.5%)  |       19 (8.6%)  |       115 (52.0%)  |       45 (20.4%)  |    
|   Education  |       
  |    ||||
|   No Formal Education  |       1 (3.4%)  |       11 (37.9%)  |       2 (6.9%)  |       9 (31.0%)  |       6 (20.7%)  |    
|   Primary Level  |       2 (4.3%)  |       1 (2.2%)  |       6 (13.0%)  |       6 (58.7%)  |       10 (21.7%)  |    
|   Secondary Level  |       3 (3.3%)  |       13 (14.4%)  |       4 (4.4%)  |       45 (50.0%)  |       25 (27.8%)  |    
|   Tertiary Level  |       4 (4.0%)  |       17 (17.2%)  |       9 (9.1%)  |       55 (55.6%)  |       14 (14.1%)  |    
|   Post-graduate Level  |       6 (7.1%)  |       15 (17.9%)  |       8 (9.5%)  |       46 (54.8%)  |       9 (10.7%)  |    
|   Occupation  |       
  |    ||||
|   Farmer  |       1 (3.6%)  |       5 (17.9%)  |       1 (3.6%)  |       14 (50.0%)  |       7 (25.0%)  |    
|   Teacher/Lecturer  |       3 (9.4%)  |       3 (9.4%)  |       1 (3.1%)  |       22 (68.8%)  |       3 (9.4%)  |    
|   Businessman/Woman  |       3 (4.1%)  |       5 (6.8%)  |       7 (9.5%)  |       40 (54.1%)  |       19 (25.7%)  |    
|   Petty Trader  |       1 (3.0%)  |       10 (30.3%)  |       4 (12.1%)  |       13 (39.4%)  |       5 (15.2%)  |    
|   Civil Servant  |       5 (7.6%)  |       15 (22.7%)  |       5 (7.6%)  |       29 (43.9%)  |       12 (18.2%)  |    
|   Artisan  |       0 (0.0%)  |       1 (6.7%)  |       3 (20.0%)  |       8 (53.3%)  |       3 (20.0%)  |    
|   Retiree  |       1 (2.4%)  |       7 (16.7%)  |       4 (9.5%)  |       25 (59.5%)  |       5 (11.9%)  |    
|   Student  |       2 (4.2%)  |       10 (20.8%)  |       2 (4.2%)  |       24 (50.0%)  |       10 (20.8%)  |    
|   Unemployed  |       0 (0.0%)  |       0 (0.0%)  |       0 (0.0%)  |       2 (100.0%)  |       0 (0.0%)  |    
|   Others  |       0 (0.0%)  |       1 (12.5%)  |       2 (25.0%)  |       5 (62.5%)  |       0 (0.0%)  |