Table S1. Normalized polarity sequences Chron Canary Keathley Pacific (Composite) M0r 0.00 0.00 0.00 M1n 4.70 5.38 2.43 M1r 7.46 12.76 10.20 M3n 9.05 15.64 11.85 M3r 13.58 17.71 13.82 M4 17.11 22.55 19.68 M5r 24.89 25.62 23.72 AMSZ 30.22 29.80 25.38 M16n 49.49 47.23 55.64 M16r 52.47 50.92 60.75 M17n 53.80 52.71 62.67 M17r 55.52 54.61 63.92 M18n 57.99 56.96 68.50 M18r 59.82 59.02 70.08 M19n 62.92 59.94 71.63 M19r 64.75 62.78 74.69 M20n 66.05 64.28 75.49 M20r 69.03 67.13 77.26 M21n 72.44 69.27 80.89 M21r 75.86 72.37 82.76 M22n 78.78 74.11 84.37 M22r 86.00 81.25 89.10 M23n 88.93 85.37 92.54 M23r 93.40 90.51 93.52 M24n 95.00 94.47 95.75 M24r 98.23 96.62 96.53 M25n 100.00 100.00 100.00