% MLB starts lasting 7 innings:
'98->38%
'99->34%
'00->36%
'01->34%
'02->35%
'03->33%
'04->32%
'05->35%
'06->31%
'07->29%
'08->29%
'09->29%
'10->34%
'11->34%
'12->30%
'13->31%
'14->31%
'15->29%
'16->23%
'17->19%
'18->18%
'19->16%
'20->11%
'21->13%

— Codify (@CodifyBaseball) March 15, 2022