Last calculations

Perhaps this is an attempt to calculate the "incalculable", but I do it anyway. These are my calculations for lasts for these ships (in round numbers):

Groningen       A       1644      220 lasts
Groningen       F       1666      420 lasts
Gouden Leeuw    A       1652      170 lasts
Gouda           A       1636      180 lasts
Gorcum          R       1639      160 lasts
Mercurius       A-VOC   1653      210 lasts
Middelburg      A      <1652      170 lasts
Brederode       R       1645      350 lasts
Prinses Louise  R       1646      200 lasts
Utrecht         R       1653      260 lasts