Month year	T-statistic	P-value (%)	Month year	T-statistic	P-value (%)	Month year	T-statistic	P-value (%)
Jan. 2004	−2.937	15.04	Jan. 2017	−0.999	94.42	Jan. 2019	−3.468	4.29
Feb. 2004	−4.279	0.34	Feb. 2017	−3.342	5.96	Feb. 2019	−5.001	0.02
Mar. 2004	−2.096	54.74	Mar. 2017	−2.774	20.68	Mar. 2019	−4.291	0.32
Apr. 2004	−2.231	47.25	Apr. 2017	−2.378	39.12	Apr. 2019	−3.179	8.86
May 2004	−2.122	53.36	May 2017	−2.704	23.45	May 2019	−4.922	0.03
Jun. 2004	−1.780	71.42	Jun. 2017	−2.248	46.31	Jun. 2019	−3.831	1.51
Jul. 2004	−6.308	0.00	Jul. 2017	−1.737	73.43	Jul. 2019	−4.591	0.11
Aug. 2004	−2.208	48.52	Aug. 2017	−2.404	37.77	Aug. 2019	−3.078	11.16
Sep. 2004	−6.248	0.00	Sep. 2017	−6.492	0.00	Sep. 2019	−4.914	0.03
Oct. 2004	−11.97	0.00	Oct. 2017	−3.381	5.40	Oct. 2019	−3.630	2.74
Nov. 2004	−6.746	0.00	Nov. 2017	−4.269	0.35	Nov. 2019	−12.50	0.00
Dec. 2004	−13.89	0.00	Dec. 2017	−3.750	1.93	Dec. 2019	−6.568	0.00
Jan. 2005	−6.437	0.00	Jan. 2018	*	*	Jan. 2020	−2.953	14.57
Feb. 2005	−5.599	0.00	Feb. 2018	−4.122	0.59	Feb. 2020	−5.417	0.00
Mar. 2005	−5.535	0.00	Mar. 2018	−3.868	1.34	Mar. 2020	−6.644	0.00
Apr. 2005	−4.072	0.69	Apr. 2018	−5.652	0.00	Apr. 2020	−5.142	0.01
May 2005	−4.101	0.63	May 2018	−3.306	6.52	May 2020	−6.707	0.00
Jun. 2005	−2.471	34.25	Jun. 2018	−2.490	33.29	Jun. 2020	−4.981	0.02
Jul. 2005	−3.493	4.02	Jul. 2018	−5.564	0.00	Jul. 2020	−4.488	0.16
Aug. 2005	−2.537	30.96	Aug. 2018	−4.043	0.76	Aug. 2020	−4.677	0.08
Sep. 2005	−2.517	31.94	Sep. 2018	−8.780	0.00	Sep. 2020	−5.036	0.02
Oct. 2005	−1.774	71.73	Oct. 2018	−7.616	0.00	Oct. 2020	−2.267	45.25
Nov. 2005	−4.448	0.18	Nov. 2018	*	*	Nov. 2020	−2.529	31.37
Dec. 2005	−4.712	0.07	Dec. 2018	−7.260	0.00	Dec. 2020	−12.39	0.00