TABLE 5.

The 5th, 10th, 15th, 25th, 50th, 75th, and 90th centiles for Speed of cognitive processing (SpC) measure for different grade groups.

Grade groups	P5	P10	P15	P25	P50	P75	P90
GR1 (Junior Class of kindergarten)	80	80	80	120	200	280	440
GR2 (Middle Class of kindergarten)	40	80	80	120	160	240	360
GR3 (Senior Class of kindergarten)	80	80	120	120	160	240	360
GR4 (Grade 1 of primary school)	120	120	160	200	240	320	372
GR5 (Grade 2 of primary school)	200	240	240	280	360	400	480
GR6 (Grade 3 of primary school)	280	320	330	360	440	480	640
GR7 (Grade 4 of primary school)	280	320	360	360	440	510	560
GR8 (Grade 5 of primary school)	280	304	320	360	480	560	720
GR9 (Grade 6 of primary school)	346	360	400	480	560	640	708