Research Article
Interval Forecasting in Supply Chain with Small Sample
Table 8
The customer perception indicators of engine product [
18].
| Year | sales volume | energy efficiency | product safety | cost performance | service promptness |
| 2005 | 850.15 | 8.2112 | 1 | 1 | 1 | 2006 | 972.18 | 8.5027 | 1.0326 | 1.0786 | 1.0405 | 2007 | 1078.47 | 8.2711 | 1.0352 | 1.1029 | 1.007 | 2008 | 1069.28 | 8.0806 | 1.0521 | 1.0624 | 0.9818 | 2009 | 1259.26 | 8.1915 | 1.0846 | 1.0277 | 1.0028 | 2010 | 1454.51 | 9.0849 | 1.0911 | 1.0705 | 1.1229 | 2011 | 1413.92 | 8.7934 | 1.0404 | 0.9908 | 1.0796 | 2012 | 1672.11 | 8.9042 | 1.0612 | 0.9769 | 1.0992 | 2013 | 1948.23 | 9.3961 | 1.1289 | 1.0243 | 1.1704 | 2014 | 2063.35 | 9.938 | 1.2214 | 0.9711 | 1.3701 |
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