APPL Income Statement

USD in millions	2017-09	2016-09	2015-09	2014-09	2013-09
Revenue	229,234	215,639	233,715	182,795	170,910
Cost of revenue	141,048	131,376	140,089	112,258	106,606
Gross profit	88,186	84,263	93,626	70,537	64,304
Operating expenses
Research and development	11,581	10,045	8,067	6,041	4,475
Sales, General and administrative	15,261	14,194	14,329	11,993	10,830
Total operating expenses	26,842	24,239	22,396	18,034	15,305
Operating income	61,344	60,024	71,230	52,503	48,999
Interest Expense	2,323	1,456	733	384	136
Other income (expense)	5,068	2,804	2,018	1,364	1,292
Income before taxes	64,089	61,372	72,515	53,483	50,155
Provision for income taxes	15,738	15,685	19,121	13,973	13,118
Net income	48,351	45,687	53,394	39,510	37,037

AAPL Balance Sheet

USD in millions	2017-09	2016-09	2015-09	2014-09	2013-09
Current assets
Cash and cash equivalents	20,289	20,484	21,120	13,844	14,259
Short-term investments	53,892	46,671	20,481	11,233	26,287
Total cash	74,181	67,155	41,601	25,077	40,546
Receivables	17,874	15,754	16,849	17,460	13,102
Inventories	4,855	2,132	2,349	2,111	1,764
Deferred income taxes			5,546	4,318	3,453
Other current assets	31,735	21,828	23,033	19,565	14,421
Total current assets	128,645	106,869	89,378	68,531	73,286
Non-current assets
Property, plant and equipment
Gross property, plant and equipment	75,076	61,245	49,257	39,015	28,519
Accumulated Depreciation	-41,293	-34,235	-26,786	-18,391	-11,922
Net property, plant and equipment	33,783	27,010	22,471	20,624	16,597
Equity and other investments	194,714	170,430	164,065	130,162	106,215
Goodwill	5,717	5,414	5,116	4,616	1,577
Intangible assets	2,298	3,206	3,893	4,142	4,179
Other long-term assets	10,162	8,757	5,556	3,764	5,146
Total non-current assets	246,674	214,817	201,101	163,308	133,714
Total assets	375,319	321,686	290,479	231,839	207,000
Current liabilities
Short-term debt	18,473	11,605	10,999	6,308
Accounts payable	49,049	37,294	35,490	30,196	22,367
Taxes payable				1,209	1,200
Accrued liabilities	25,744	22,027	25,181	7,689	5,217
Deferred revenues	7,548	8,080	8,940	9,548	7,435
Other current liabilities				8,498	7,439
Total current liabilities	100,814	79,006	80,610	63,448	43,658
Non-current liabilities
Long-term debt	97,207	75,427	53,463	28,987	16,960
Deferred taxes liabilities	31,504	26,019	24,062	20,259	16,489
Deferred revenues	2,836	2,930	3,624	3,031	2,625
Other long-term liabilities	8,911	10,055	9,365	4,567	3,719
Total non-current liabilities	140,458	114,431	90,514	56,844	39,793
Total liabilities	241,272	193,437	171,124	120,292	83,451
Stockholders' equity
Common stock	35,867	31,251	27,416	23,313
Additional paid-in capital					19,764
Retained earnings	98,330	96,364	92,284	87,152	104,256
Accumulated other comprehensive income	-150	634	-345	1,082	-471
Total stockholders' equity	134,047	128,249	119,355	111,547	123,549
Total liabilities and stockholders' equity	375,319	321,686	290,479	231,839	207,000

Please caculate apple's WACC for fiscal year 2013,2014,2015,2016,2017