What are the statistics for the survival of lymphoma?

Depends: Depends on subtype of lymphoma (over 40 subtypes), stage, prognostic factors, etc.

Depends on type: An aggressive lymphoma can actually be cured in many cases but the more slow growing indolent lymphomas have high remission rates but are currently incurable. The above pertains to non-hodgkin lymphoma. Hodgkin lymphoma is almost totally curable in its early stages but less so if more advanced.