When NARA re-opens, which has now been delayed, I'll check the production and sales figures. This and the previous versions were standard US Mint products - part of the Presidential Series - and sold without restriction. However, this one was available only for 3 months, so it will be interesting to learn the quantity sold. Issue price was either $1.50 or $3.00, if I remember correctly. (I'll probably write a short article so that the information can get into published form for future reference.)