build/html/demo/demoA_3: Instructors worktime

build/html/demo/demoA_3
Instructors worktime	index	Generated on 20160316_2225

Instructor	Subject	Vol.	Sum per subject	Sum per instructor
1: F. Sinatra	Chemistry	2	2 h.
	Math	5	5 h.
	Sums per div.	7
	Sums	7		7.00 h. / 3 days (Mean = 2.33 h./day)
2: J. Wayne	Chemistry	2	2 h.
	English	3	3 h.
	Sums per div.	5
	Sums	5		5.00 h. / 3 days (Mean = 1.67 h./day)
3: L. DiCaprio	Physics	3	3 h.
3: L. DiCaprio	Sums	3		3.00 h. / 3 days (Mean = 1.00 h./day)
4: P. Newman	French	1	1 h.
4: P. Newman	Sums	1		1.00 h. / 1 days (Mean = 1.00 h./day)
5: P. Sellers	Russian	7	7 h.
5: P. Sellers	Sums	7		7.00 h. / 4 days (Mean = 1.75 h./day)
6: Susan	English	1	1 h.
6: Susan	Sums	1		1.00 h. / 1 days (Mean = 1.00 h./day)
7: T. Hanks	Chemistry	2	2 h.
7: T. Hanks	Sums	2		2.00 h. / 1 days (Mean = 2.00 h./day)