@Jonas *********
, IF I read those stamps correctly, you entered on a 30 day visa exempt entry Oct 17, 2014, you extended that by 30 more days and then you converted that IN COUNTRY at the immigration office to a 90 day Non-O visa, and then got your yearly extension from that since then.
SO unless you "broke the chain" of yearly extensions and bought a NEW visa (which you would know) you have yearly extension based on a O visa and do NOT require insurance.