		Ti	Tsf	Ts13	Tcfr	Thex	Tpa	Taam	Trd	Tss	Tci	Tvp	Tld	Trend of the means
N	Valid	89	89	89	89	89	89	89	89	89	89	89	89
N	Not valid	0	0	0	0	0	0	0	0	0	0	0	0
Mean		2.9	2.57	2.73	2.08	2.65	2.18	2.64	2.72	2.17	2.12	2.01	2.42	2.63
Median		2	3	3	2	3	1	3	3	1	3	3	3
St. Deviation		0.798	0.676	0.579	0.786	0.623	0.853	0.724	0.69	0.81	0.77	0.79	0.666