How about,30 years of stock market experience,would that help?If you must know,nothing is exactly 100 % always correct,with no fluctuation whatsoever,so there can never be a "supported assessmsent",because there are thousands of publicly traded companies on the pinksheets/otc,the status of any given number of these companies change quite frequently,but overall,you will have the vast majority of them having gagged TAs,at one time or another,whether it be 99%,99.9%,or whatever very high percentage number you wish to apply,so the exact number is not important,it is the overall picture that should be realized.