Table 12.

Summary statistics for day shift samples

	All		Post Sept. 2013		Apr.–Sept., post Sept. 2013		May–Sept., post Sept. 2013		May–Sept., post Jan. 2015		May–Sept., post Sept. 2013
	Mean	Std.	Mean	Std.	Mean	Std.	Mean	Std.	Mean	Std.	Mean	Std.
Output	8118.78	4231.70	9441.66	4236.13	9439.05	4077.35	9390.37	3892.88	10196.14	4056.54	9682.81	3932.90
Grade-A output	7037.53	3734.16	8146.67	3776.67	8132.99	3654.21	8083.06	3482.25	8814.16	3634.66	8352.63	3522.31
Temperature	20.23	6.32	20.03	6.14	25.36	3.09	26.15	2.44	26.15	2.48	26.16	2.45
Temperature 24-hr average	18.23	6.16	18.04	6.05	23.44	3.01	24.27	2.34	24.29	2.34	24.30	2.34
Temperature daytime average	18.10	6.07	17.91	5.97	23.23	2.96	24.04	2.31	24.06	2.31	24.06	2.31
Temperature > 24	0.36	0.48	0.34	0.47	0.72	0.45	0.82	0.39	0.82	0.38	0.82	0.39
Temperature >26	0.24	0.42	0.21	0.41	0.48	0.50	0.57	0.49	0.56	0.50	0.57	0.49
Temperature>28	0.10	0.30	0.08	0.27	0.18	0.39	0.22	0.42	0.24	0.43	0.23	0.42
Dry bulb temperature	22.71	8.19	22.52	7.86	28.78	4.18	29.61	3.60	29.60	3.71	29.63	3.63
Relative humidity	86.91	12.73	86.01	13.52	91.62	7.99	92.16	7.54	92.24	7.36	92.15	7.53
Precipitation	3.98	9.58	4.12	9.99	5.62	12.58	5.73	13.21	5.96	14.04	5.74	13.38
Cloud coverage (%)	61.00	36.30	60.40	36.44	60.83	33.35	59.49	33.76	59.74	34.55	59.35	33.96
Sunshine duration	239.72	253.82	240.45	252.29	245.87	241.77	256.94	246.17	257.30	251.23	257.93	247.36
Wind gust	10.18	5.20	10.18	5.02	10.34	5.84	10.02	5.63	10.70	6.04	10.15	5.73
Wind speed	7.99	3.77	7.86	3.73	7.76	3.93	7.52	3.73	7.81	3.92	7.58	3.77
PM2.5									33.23	14.96
PM10									63.13	23.16
SO${}_2$									25.88	13.18
NO${}_2$									15.59	5.25
CO									1.32	0.24
O${}_3$									48.22	20.84
Age											37.19	5.60
Education											11.82	1.84
Slicer											0.40	0.49
Lnexp											7.38	0.94
Observations	141042		98401		42745		35190		24546		29949
Workers	1854		1048		683		635		437		331