This is a description of the data contained in the included files:

*Fig 4*

(a).dat - panel (a) of Figure 4. Columns are as follows: Time, asymmetry, asymmetry error, fitted asymmetry

(b).dat	- panel	(b) of Figure 4. Columns are as	follows: Time, asymmetry, asymmetry error, fitted asymmetry

inset.dat - inset of Figure 4. Columns are as follows: Temperature, lambda_3, lambda_3 error

*Fig 5*

nu.dat - frequency nu from Figure 5 (e). Columns are as follows: Temperature, nu, nu error

lambda_2.dat - lambda_2 from Figure 5 (e). Columns are as follows: Temperature, lambda_2, lambda_2 error

A_2_LF.dat - A_2 under 100 mT longitudinal field from Figure 5 (e). Columns are as follows: Temperature, A_2, A_2 error

A_2_ZF.dat - A_2 under zero field from Figure 5 (e). Columns are as follows: Temperature, A_2, A_2 error

*SI*

SI.dat - wTF amplitude, A, from Figure S8. Columns are as follows: Temperature, A, A error
