Here are some indicator statistics (not the best, but all I can get without doing a bit of digging):
HULL LOSSES AS A % OF NUMBER BUILT
No losses
A319
A321
737-600
737-700
737-800
737-900
0.5% 737-500
0.8% A320
0.9% 737-300
1.0% 737-400
3.3% 737-100
7.5% 737-200