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Data:
109.86 108.68 113.38 117.12 116.23 114.75 115.81 115.86 117.80 117.11 116.31 118.38 121.57 121.65 124.20 126.12 128.60 128.16 130.12 135.83 138.05 134.99 132.38 128.94 128.12 127.84 132.43 134.13 134.78 133.13 129.08 134.48 132.86 134.08 134.54 134.51 135.97 136.09 139.14 135.63 136.55 138.83 138.84 135.37 132.22 134.75 135.98 136.06 138.05 139.59 140.58 139.81 140.77 140.96 143.59 142.70 145.11 146.70 148.53 148.99 149.65 151.11 154.82 156.56 157.60 155.24 160.68 163.22 164.55 166.76 159.05 159.82 164.95 162.89
Seasonal period
12
1
2
3
4
5
6
7
8
9
10
11
12
Type of Exponential Smoothing
(?)
Single
Double
Triple
Type of seasonality
(?)
additive
multiplicative
Number of Forecasts
12
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Chart options
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