pre_text: Market Information Our common stock is traded under the symbol “OPRX” on the Nasdaq Capital Market. Only a limited market exists for our securities. There is no assurance that a regular trading market will develop, or if developed, that it will be sustained. Therefore, a shareholder may be unable to resell his securities in our company. The following tables set forth the range of high and low bid information for our common stock for the each of the periods indicated. These quotations reflect inter-dealer prices, without retail mark-up, mark-down or commission and may not necessarily represent actual transactions. On March 24, 2020, the last sales price per share of our common stock was $7.93
table: Fiscal Year Ending December 31, 2018
table: Quarter Ended High $ Low $
table: March 31, 2018   4.98 3.36
table: June 30, 2018   11.00 4.29
table: September 30, 2018   18.39 9.32
table: December 31, 2018   18.00 8.92
question: Analyse this data from a financial earnings document. What is the average of high bids throughout 2018?