年份	产量(万台)	Y_t	APE(%)	$Y_{t}^{b o o k}$	APE(%)
1990	13.5	9.7135	28.0481	11.1731	17.2363
1991	16.4	19.7713	20.5564	19.8397	20.9738
1992	22.9	24.3717	6.4266	23.6345	3.2074
1993	26.2	25.1435	4.0323	24.0503	8.2050
1994	20.7	23.5133	13.5907	22.3927	8.1773
1995	20.3	20.7051	1.9955	19.7801	2.5611
1996	17.7	17.7410	0.2315	17.1437	3.1429
1997	18.7	15.4407	17.4296	15.2275	18.5695
1998	11.9	14.4216	21.1901	14.5883	22.5908
1999	14.2	15.0991	6.3316	15.5957	9.8289
2000	17.7	17.6860	0.0788	18.4321	4.1362
2001	25.6	22.1932	13.3076	23.0927	9.7941
2002	30.9	28.4292	7.9962	29.3855	4.9013
2003	30.6	36.0001	17.6474	36.9313	20.6905
2004	48.7	44.3100	9.0143	45.1637	7.2614
2005	51.1	52.5607	2.8585	53.3291	4.3622
2006	57.3	59.7516	4.2785	60.4867	5.5614
2007	64.7	64.6800	0.0308	65.5085	1.2496
2008	71.7	65.9410	8.0320	67.0793	6.4445
2009	58.6	61.9273	5.6780	63.6967	8.6974
MAPE_total(%)			8.4582		8.9661