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:
| Type | Beam height (mm) | Flange width (mm) | Web thickness (mm) | Flange thickness (mm) | Weight (kg/m) | Cross-section area (cm 2 ) | Moment of inertia in torsion (J) (cm 4 ) |
| --- | --- | --- | --- | --- | --- | --- | --- |
| HE 100 A | 96.0 | 100.0 | 5 | 8 | 16.7 | 21.2 | 5.24 |
| HE 120 A | 114.0 | 120.0 | 5 | 8 | 19.9 | 25.3 | 5.99 |
| HE 140 A | 133.0 | 140.0 | 5.5 | 8.5 | 24,7 | 31.4 | 8.13 |
| HE 160 A | 152.0 | 160.0 | 6 | 9 | 30.4 | 38.8 | 12.19 |
| HE 1000 × 415 | 1020.0 | 304.0 | 26 | 46 | 415 | 528.7 | 2714 |
| HE 1000 × 438 | 1026.0 | 305.0 | 26.9 | 49 | 437 | 557.2 | 3200 |
| HE 1000 × 494 | 1036.0 | 309.0 | 31 | 54 | 494 | 629.1 | 4433 |
Question:
What is the flange thickness when the weight is 19.9?
Answer:
8.0