Answer
The mean return was 12.19%, and the median return was 16.06%. This means that the distribution of returns is roughly symmetric.
Work Step by Step
$((-37.23)+(-27.87)+(-20.86)+(-18.78)+(-10.97)+(-10.89)+(-6.03)+(-3.98)+(-2.97)+0.06+0.98+1.75+3.27+5.62+6.38+8.54+9.02+10.67+12.48+15.61+15.77+16.06+16.19+17.16+17.34+17.59+20.43+21.56+22.71+24.23+24.31+24.4+26.77+28.3+28.53+31.46+31.48+31.64+33.07+33.21+33.58+36.41+37.38)/43$
$524.38/43 = 12.1948$
