Estimated Parameters of Exponential Smoothing
Parameter	Value
alpha	1
beta	0
gamma	0.390555699717276

Interpolation Forecasts of Exponential Smoothing
t	Observed	Fitted	Residuals
13	15.579	15.4548089922599	0.124191007740077
14	16.348	16.4202003344058	-0.0722003344058351
15	15.928	15.9239578943238	0.00404210567620922
16	16.171	16.072032518888	0.0989674811120338
17	15.937	15.8095724402582	0.127427559741818
18	15.713	15.574200346408	0.138799653591967
19	15.594	16.8367734825685	-1.24277348256845
20	15.683	15.3326210878771	0.35037891212286
21	16.438	14.9322846281521	1.50571537184791
22	17.032	16.2288897724011	0.803110227598886
23	17.696	17.9113593373384	-0.215359337338423
24	17.745	17.3774845502951	0.367515449704918
25	19.394	18.1018019164242	1.2921980835758
26	20.148	20.4300272021554	-0.282027202155398
27	20.108	19.615095456479	0.492904543521036
28	18.584	20.2781339945216	-1.6941339945216
29	18.441	18.1621566059006	0.278843394099372
30	18.391	18.0145435528109	0.376456447189117
31	19.178	19.698587106943	-0.52058710694298
32	18.079	18.8463499802461	-0.767349980246134
33	18.483	17.2071565053258	1.27584349467424
34	19.644	18.242713930467	1.40128606953296
35	19.195	20.6515420777206	-1.45654207772061
36	19.65	18.8458922152151	0.804107784784897
37	20.83	20.0404483955595	0.789551604440515
38	23.595	21.9393617715101	1.65563822848985
39	22.937	22.9633457661497	-0.0263457661497206
40	21.814	23.1247993233655	-1.31079932336552
41	21.928	21.3112850166031	0.616714983396893
42	21.777	21.4128968917593	0.364103108240737
43	21.383	23.3169967156555	-1.93399671565551
44	21.467	21.0081167792622	0.458883220737789
45	22.052	20.423878508608	1.62812149139196
46	22.68	21.7573048449596	0.922695155040408
47	24.32	23.8365324298647	0.483467570135307
48	24.977	23.8662986746648	1.11070132533521
49	25.204	25.4615349017819	-0.257534901781895
50	25.739	26.5367360099208	-0.79773600992079
51	26.434	25.0459244327973	1.38807556720273
52	27.525	26.6436358928131	0.881364107186915
53	30.695	26.8792950331733	3.81570496682665
54	32.436	29.9570218480427	2.47897815195727
55	30.16	34.7076133781679	-4.54761337816786
56	30.236	29.6130270717629	0.622972928237058
57	31.293	28.7495677786146	2.54343222138536
58	31.077	30.8574266272027	0.219573372797289
59	32.226	32.6456114769509	-0.419611476950934
60	33.865	31.6109491075251	2.25405089247486
61	32.81	34.5065164800257	-1.6965164800257
62	32.242	34.5311640980212	-2.28916409802123
63	32.7	31.3626264240328	1.33737357596718
64	32.819	32.9487631287749	-0.12976312877489
65	33.947	32.0407457471854	1.90625425281459
66	34.148	33.1263493669014	1.02165063309862
67	35.261	36.5371223120473	-1.27612231204731
68	39.506	34.6140123061307	4.89198769386925
69	41.591	37.5509293401338	4.04007065986624
70	39.148	40.9984345390672	-1.85043453906719
71	41.216	41.1126922187674	0.103307781232587
72	40.225	40.4174767310281	-0.192476731028108

Extrapolation Forecasts of Exponential Smoothing
t	Forecast	95% Lower Bound	95% Upper Bound
73	40.9788480324144	37.9544132731134	44.0032827917154
74	43.1171841029854	38.7294126953667	47.5049555106041
75	41.9262581445281	36.7001266437564	47.1523896452999
76	42.2326334628124	36.1661831614116	48.2990837642131
77	41.2186840090065	34.5757002178068	47.8616678002062
78	40.2131723183739	33.0674569142375	47.3588877225103
79	43.018598329561	34.8052835352771	51.2319131238449
80	42.219508228556	33.6179750068664	50.8210414502455
81	40.1272580369707	31.4185262542251	48.8359898197162
82	39.5570071912319	30.4633593077117	48.650655074752
83	41.541771256327	31.5339155170687	51.5496269955853
84	40.7365994860656	-27.8335770469334	109.306776019065