There were more ships built than just those in the 30-ship building program

I keep finding examples of ships built in 1653 (especially) that didn't fit into the well-known building program started in early 1653. One example of an an "odd" ship was the frigate Klein-Frisia probably built at Harlingen in 1653. She was built to the 120ft charter and probably was 190 lasts. Her dimensions were 120ft x 28-1/4ft x 11-1/4ft. Her armament was a mixture of 12pdr, 6pdr, 3pdr, and 2pdr guns of unknown numbers, but totalling 38 in all. I would guess that she had a lower tier of 12pdr guns and an upper tier of 6pdr guns, with 2pdr and 3pdr on the forecastle and quarterdeck. There was an ongoing need to replace lost frigates with new construction. The new building program was really only concerned with "ships of the line", although that term was not in use that early. For example, circa 1658, the Klein Harder was built to the same dimensions as the Overijssel of 1650 (114ft x 28ft x 11ft).