This is a common question, but there are too many variables. Insurance companies change their rates frequently, and not necessarily based upon simple things like age and breed.
For rates, you need to contact the pet insurance companies and ask for a rate quote. A good list of companies can be found at petinsurancereview.com.
Before contacting any insurers, write down your list of questions. Also, ask them what else you need to know. Most of our clients who end up unhappy with their insurance failed to understand key points about their coverage.
Remember: You WANT to feel that your pet insurance premiums for years were a waste of money. That means your dog or cat did NOT have health problems severe enough to incur large medical expenses.