(b)they shall determine an upward and a downward calibrated shock from the time series of 10 business days returns referred to in point (a) in accordance with:
(i)the historical method set out in Article 8, where the number of returns in the time series of 10 business days returns referred to in point (a) of this paragraph is equal to or greater than 200;
(ii)the asymmetrical sigma method set out in Article 9, where the number of returns in the time series of 10 business days returns referred to in point (a) of this paragraph is lower than 200 and equal to or greater than 12;
(iii)the fallback method set out in Article 10, where the number of returns in the time series of 10 business days returns referred to in point (a) of this paragraph is lower than 12;