16 17 4 18 1 3 19 1.0 1.1 1.2 2.0 2.1 2.2 3.0 3.1 3.2 20 21 Data Show 22 23 24 1 3 25 1.0 1.1 1.2 2.0 2.1 2.2 3.0 3.1 3.2 26 Data Show 27 28 29 1 3 30 1.0 1.1 1.2 2.0 2.1 2.2 3.0 3.1 3.2 31 edusearch 32 Data Show 33 34 1 3 35 1.0 1.1 1.2 2.0 2.1 2.2 3.0 3.1 3.2