Lemonade, a general insurer, publishes this cool automation index, tracking policies per employee from the start of doing business. Link.
How do New Zealand insurers compare? Well, it is hard to say because we do not know exactly how many people that they employ. Based on some disclosures, however, and an imperfect count of policies. This is a rough guide for a reasonably large insurer: about 1000 policies per employee. Have fun working out what your number is, and whether you can catch Lemonade.
Do check out that link, by the way, as it has a good, detailed, discussion of automation and how Lemonade has been able to achieve its high ratio.