Table 7. Mean, standard deviation (σ) and coefficient of variation (cv*) for Motif 3 by period.

Period	Mean	σ	cv*
1350–1400	30.8	13.6	44.1
1400–1450	62.0	18.2	29.6
1450–1500	57.3	15.8	27.9
1500–1550	65.5	18.7	29.3
1550–1600	66.0	23.4	36.2
1550–1600 adjusted	74.2	14.1	19.4
1600–1650	78.1	13.0	16.8