Closing Market Price and NAV History

Date	Market Price1	Net Asset Value2	Bid/Ask Midpoint	Volume1	Net Assets2
9/30/2015	$44.82	$44.76	$44.69	24,531	$143,316,799
9/29/2015	$43.85	$43.72	$43.80	30,139	$140,000,232
9/28/2015	$44.02	$44.18	$44.09	148,413	$141,468,185
9/25/2015	$45.08	$45.06	$44.99	21,693	$144,269,571
9/24/2015	$44.53	$44.60	$44.64	17,863	$142,822,271
9/23/2015	$44.70	$45.21	$44.79	27,481	$144,759,345
9/22/2015	$45.15	$45.23	$45.06	13,613	$144,828,740
9/21/2015	$45.99	$46.10	$45.96	10,182	$147,618,466
9/18/2015	$46.14	$46.21	$46.04	6,858	$147,975,464
9/17/2015	$47.26	$47.26	$47.09	4,746	$151,340,273
9/16/2015	$47.05	$46.93	$47.03	20,031	$150,281,123
9/15/2015	$46.38	$46.30	$46.30	16,664	$148,249,658
9/14/2015	$46.03	$46.03	$45.94	13,570	$147,404,046
9/11/2015	$46.18	$46.32	$46.17	5,397	$148,306,249
9/10/2015	$46.08	$46.38	$46.20	7,038	$148,501,237
9/9/2015	$46.00	$46.11	$45.86	56,305	$147,658,175
9/8/2015	$45.79	$45.70	$45.82	5,502	$146,345,136
9/4/2015	$44.89	$45.21	$44.80	9,800	$144,763,210
9/3/2015	$46.02	$46.08	$45.93	15,881	$147,535,712
9/2/2015	$45.65	$45.61	$45.71	23,823	$146,040,698
9/1/2015	$45.24	$45.38	$45.09	60,553	$145,318,824