Top: braking indices (absolute value) as a function of τ_c for our sample of 118 pulsars. We represent pulsars with n < 3 with crosses and pulsars with n > 3 with diamonds. Note that all objects marked with crosses and τ_c > 10⁵ yr have actually n < 0. The 8 youngest objects discussed in Espinoza et al. (2011) are marked with squares. Middle: magnetic field evolution timescale, τ_B = 4τ_c/(3 − n) for pulsars with n < 3. Bottom: absolute value of τ_B (they are all negative) for pulsars with n > 3.