Thanks for your replies. Yes, the concern is overloading the circuit and tripping the breaker, which hasn't happened yet, though I was curious about the nameplace listing anyway. My biggest doubt was over fridge, which lists its current at 0.9 amps. When I said the appliances total to a few amps, I meant that the 'fridge and dehumidifier (5 amps) leave enough room for any of the other things we're likely to do at once.
Since the current draw on the nameplate is a maximum based on your replies, question answered! Thank you very much!