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:
| Year | West Manila | East Manila | Consumer Price Index (2005=100) | West Manila as a share of 1996 real tariff | East Manila as a share of 1996 real tariff |
| --- | --- | --- | --- | --- | --- |
| 1996.0 | 8.6 | 8.6 | 60.6 | 100% | 100% |
| 1997.0 | 5.0 | 2.3 | 64 | 55% | 25% |
| 2000.0 | 6.5 | 4.5 | 77 | 59% | 41% |
| 2002.0 | 20 | 14.5 | 84.8 | 166% | 204% |
| 2004.0 | 30 | 18 | 92.9 | 228% | 137% |
| 2008.0 | 32 | 27 | 119.4 | 189% | 159% |
Question:
What was West Manila's tariff increase when its CPI is 60.6?
Answer:
8.6