How often do you have sex?

Since it's so quiet here, why not a general question to get things started? How often do you have sex (however you define it) and how often would be your ideal? And any details you feel relevant.

We are mid-50s and the kids left at home are teens now so family responsibilities are eased (more free time) we average just over 1x/day, and my ideal is once or twice a day.