an 1: 173.8
Jan 2: 172.0
Jan 3: 171.2
Jan 4: 169.6
Jan 5: 167.4
Jan 6: 171.2
Jan 7: 172.4
Jan 8: 169.2
Jan 9: 169
Jan 10: 171
Jan 11:172.6
Jan 12: 169.4
Jan 13: 168.2
Jan 14: 166.6
Jan 15:167.8
Jan 16: 167.2
Jan 17: 167.2
Jan 18: 167.4
Jan 19: 165.8
Jan 20: 166.6
Jan 21: 166.8
Jan 22: 168.8
Jan 23: 168.4
Jan 24:166.8
Jan 25: 164.8
Jan 26: 164.4
Jan 27: 164.0
Jan 28: 164.4
Jan 29: 162.8
Jan 30: 163
Jan 31: 164