Year	PC1	PC2	PC3
1975	0.00795054	0.0239381	-0.0404138
1976	-0.0329146	0.0259724	0.0164748
1977	0.0117038	-0.0934603	-0.0155988
1978	0.057594	-0.021077	-0.133697
1979	-0.111	-0.0734526	0.0243882
1980	-0.040635299	-0.040635299	-0.040635299