The following table summarizes information about warrants outstanding as of December 31, 2016 and 2015:


	Warrants		Fair Value of Warrants	Outstanding at December 31,
Grant Date	Issued	Exercise Price	Issued	2016	2015
Throughout 2011	9,324	$27.53 to $33.14	79	-	6,226
Throughout 2012	71,978	$30.52 to $33.03	628	6,625	49,975
Throughout 2014	50,403	$45.62 to $49.06	276	14,365	50,403
Throughout 2015	91,179	$42.45 to $54.48	1,333	86,495	91,179
Throughout 2016	10,444	$63.33 to $77.33	189	10,444	-
				117,929	197,783

Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

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Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable.

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