Johnson outboard motor 28 hp Serial number E6203861 Model number J28ELCDC what year is it?

I will venture a guess here since: 1. the year doesn't appear to be in the model no. 2. the only possible year in the serial no. would be 19..."62" (not having been available in 19...20, 03, 38, or 86 and, 61 being at the end, where the serial no. should change sequentially with every unit to come off the line, doesn't fit either : ) LDP