Posted by https://finance.yahoo.com/quote/PRNHX/performance?p=PRNHX
http://pages.stern.nyu.edu/~adamodar/New_Home_Page/datafile/histretSP.html
https://individual.troweprice.com/staticFiles/Retail/Shared/PDFs/PriceReports/Spring2002PriceReport.pdf
Charles Thomas
https://www.youtube.com/watch?v=A3htnbwFgoM