No 	LAST 	NEXT 
1 	2.0 	50 
2 	1.8 	57 
3 	3.7 	55 
4 	2.2 	47 
5 	2.1 	53 
6 	2.4 	50 
7 	2.6 	62 
8 	2.8 	57 
9 	3.3 	72 
10 	3.5 	62 
11 	3.7 	63 
12 	3.8 	70
13 	4.5 	85
14 	4.7 	75
15 	4.0 	77
16 	4.0 	70
17 	1.7 	43
18 	1.8 	48
19 	4.9 	70
20 	4.2 	79
21 	4.3 	72