Can we draw the following hypothesis from the context (see options)?

Context:

The 2007 North Indian Ocean cyclone season was an event in the annual cycle of tropical cyclone formation. The North Indian Ocean cyclone season has no official bounds, but cyclones tend to form between April and December, with peaks in May and November. These dates conventionally delimit the period of each year when most tropical cyclones form in the northern Indian Ocean.

Hypothesis: There has been no cyclone season in the North Indian Ocean for the past 20 years.
Choose from:
+ Yes
+ It's impossible to say
+ No
No