Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Medal | Name | Sport | Event |
| --- | --- | --- | --- |
| Silver |  | Badminton | Men's team |
| Silver | Aparna Popat | Badminton | Women's singles |
| Silver | Jitender Kumar | Boxing | Middleweight |
| Silver | Jaspal Rana | Shooting | Men's 25 m Air Pistol |
| Silver | Jaspal Rana\nSatendra Kumar | Shooting | Men's Air Pistol pairs |
| Silver | Dharmaraj Wilson | Weightlifting | Men's 56 kg-Combined |
| Silver | Arumugam K. Pandian | Weightlifting | Men's 56 kg-Snatch |
| Silver | Arumugam K. Pandian | Weightlifting | Men's 56 kg-Clean and jerk |
| Silver | Satheesha Rai | Weightlifting | Men's 77 kg-Clean and jerk |
| Silver | Satheesha Rai | Weightlifting | Men's 77 kg-Combined |
Question:
how many total sports had silver medals awarded?
Answer:
4