|
Percentage point changes before IRS intervention
|
|
Jan 2016
|
Ref.
| | | |
|
Feb 2016
|
− 0.05
|
− 0.58
|
0.47
|
0.836
|
|
March 2016
|
− 1.03
|
− 1.60
|
− 0.45
|
< 0.001
|
|
April 2016
|
− 0.35
|
− 0.83
|
0.13
|
0.153
|
|
May 2016
|
0.66
|
0.14
|
1.17
|
0.012
|
|
June 2016
|
0.97
|
0.53
|
1.40
|
< 0.001
|
|
July 2016
|
0.71
|
0.27
|
1.16
|
0.002
|
|
Percentage point changes after IRS intervention
|
|
August (spray month)
|
Ref
| | | |
|
Sept (1 months after IRS)
|
− 0.07
|
− 0.98
|
0.84
|
0.878
|
|
Oct (2 month after IRS)
|
− 0.18
|
− 1.09
|
0.74
|
0.702
|
|
Nov (3 month after IRS)
|
− 0.13
|
− 1.04
|
0.78
|
0.781
|
|
Dec (4 month after IRS)
|
− 0.39
|
− 0.85
|
0.05
|
0.085
|
|
Jan 17 (5 month after IRS)
|
− 0.60
|
− 1.08
|
− 0.12
|
0.015
|
|
Feb 17 (6 month after IRS)
|
− 1.19
|
− 1.79
|
− 0.60
|
< 0.001
|
|
Mar 17 (7 month after IRS)
|
− 1.97
|
− 2.10
|
0.12
|
0.081
|
