statistics io output for cursors

For queries using cursors, statistics io prints the cumulative I/O since the cursor was opened:

1> open c

Table: titles scan count 0, logical reads: (regular=0 apf=0 total=0), physical reads: (regular=0 apf=0 total=0), apf IOs used=0
Total actual I/O cost for this command: 0.
Total writes for this command: 0

1> fetch c

title_id type         price                    
 -------- ------------ ------------------------ 
 T24140   business                       201.95 
Table: titles scan count 1, logical reads: (regular=3 apf=0 total=3), physical reads: (regular=0 apf=0 total=0), apf IOs used=0
Total actual I/O cost for this command: 6.
Total writes for this command: 0

1> fetch c

title_id type         price                    
 -------- ------------ ------------------------ 
 T24226   business                       201.95 
Table: titles scan count 1, logical reads: (regular=4 apf=0 total=4), physical reads: (regular=0 apf=0 total=0), apf IOs used=0
Total actual I/O cost for this command: 8.
Total writes for this command: 0