Date          [1]      [2]      [3]      [4]
23 Apr.      86.9      6.2        4      2.9
24 Apr.      86.8      6.2      4.1      2.9
25 Apr.      86.4      6.3      3.9      3.3
26 Apr.      86.1      6.5        4      3.5
27 Apr.        86      6.2      4.2      3.6
28 Apr.      85.8      6.1      4.4      3.7
29 Apr.      85.8      6.4      4.2      3.5
30 Apr.      85.9      6.4      4.4      3.3
1 May        85.8      6.6      4.3      3.3
2 May        85.6      6.8      4.4      3.1
3 May        85.7        7      4.2      3.1
4 May        85.9      6.7      4.2      3.1
5 May        86.3      6.7      4.1        3
6 May        86.5      6.4      4.3      2.8
7 May        86.5      6.5      4.3      2.6
8 May        86.2      6.9      4.3      2.6
9 May        85.8      6.9      4.6      2.7
10 May       85.3      7.5      4.5      2.7
11 May       85.5        7      4.6      2.9
12 May       85.7      6.6      4.7      2.9
13 May       85.7      6.6      4.6      3.1
14 May       85.7      6.6      4.6      3.1
15 May       85.5      6.8      4.3      3.4
16 May       85.4        7        4      3.6
17 May       86.1      6.4        4      3.5
18 May       86.3      6.3        4      3.5
19 May       86.2      6.3      4.1      3.5
20 May         86      6.4      4.2      3.5
21 May       85.8      6.8      4.1      3.3
22 May       85.7      6.8      4.3      3.2
23 May       85.3      6.7      4.7      3.4