Complex sentence: Wotansvolk and the NPKA are not the only groups active in prisoner outreach, however in 2001, "" Wotansvolk seem "(ed)" more successful in its outreach efforts than other Asatrú/Odinist programs.
Split into simpler sentences: Wotansvolk and the NPKA are not the only groups active in prisoner outreach. However, by 2001, Wotansvolk seem "(ed)" more successful in its outreach efforts than other Asatrú/Odinist programs.