Table:
Parameter	Group	6 weeks	12 weeks	26 weeks
New bone	Allograft	2.6 ± 0.9	2.0 ± 0.8	1.8 ± 1.0
PEEK Optima HA	2.0 ± 0.8	2.8 ± 0.5	3.0 ± 0.0
PEEK Optima Natural	1.0 ± 0.0	3.0 ± 0.0	3.0 ± 0.0
Quality	Allograft	1.2 ± 1.3	0.5 ± 0.6	0.8 ± 1.5
PEEK Optima HA	1.0 ± 1.4	1.5 ± 1.3	1.8 ± 1.0
PEEK Optima Natural	0.0 ± 0.0	0.8 ± 1.0	1.8 ± 1.5
Contact	Allograft	1.8 ± 1.3	1.3 ± 1.5	2.0 ± 1.2
PEEK Optima HA	0.5 ± 0.6	1.5 ± 1.0	1.3 ± 0.5
PEEK Optima Natural	0.0 ± 0.0	0.5 ± 0.6	1.0 ± 1.4

Parse the following content of the illustration in markdown code: | Parameter | Group | 6 weeks | 12 weeks | 26 weeks | 
 | --- | --- | --- | --- | --- | 
 | <ROWSPAN=3> New bone | Allograft | 2.6 ± 0.9 | 2.0 ± 0.8 | 1.8 ± 1.0 | 
 | PEEK Optima HA | 2.0 ± 0.8 | 2.8 ± 0.5 | 3.0 ± 0.0 | 
 | PEEK Optima Natural | 1.0 ± 0.0 | 3.0 ± 0.0 | 3.0 ± 0.0 | 
 | <ROWSPAN=3> Quality | Allograft | 1.2 ± 1.3 | 0.5 ± 0.6 | 0.8 ± 1.5 | 
 | PEEK Optima HA | 1.0 ± 1.4 | 1.5 ± 1.3 | 1.8 ± 1.0 | 
 | PEEK Optima Natural | 0.0 ± 0.0

| 0.8 ± 1.0 | 1.8 ± 1.5 | 
 | <ROWSPAN=3> Contact | Allograft | 1.8 ± 1.3 | 1.3 ± 1.5 | 2.0 ± 1.2 | 
 | PEEK Optima HA | 0.5 ± 0.6 | 1.5 ± 1.0 | 1.3 ± 0.5 | 
 | PEEK Optima Natural | 0.0 ± 0.0 | 0.5 ± 0.6 | 1.0 ± 1.4 |