16	4
1	school	Variable1	2	8	2	99999	
2	Year	Variable2	1	8	2	99999	
3	Achieve	Variable3	0	8	2	99999	
4	Ratio	Variable4	0	8	2	99999	
UNITS	school	Year	Achieve	Ratio	
CASE_1	School_1	1950	18.00	25.00	
2	School_1	1960	22.00	23.00	
3	School_1	1970	23.00	20.00	
4	School_1	1980	24.00	15.00	
5	School_2	1950	16.00	25.00	
6	School_2	1960	18.00	23.00	
7	School_2	1970	17.00	26.00	
8	School_2	1980	16.00	28.00	
9	School_3	1950	21.00	22.00	
10	School_3	1960	22.00	20.00	
11	School_3	1970	20.00	20.00	
12	School_3	1980	18.00	26.00	
13	School_4	1950	13.00	30.00	
14	School_4	1960	15.00	28.00	
15	School_4	1970	17.00	25.00	
16	School_4	1980	20.00	21.00	
