category	count	%
total	5 838 383	100.000
ok	2 212 565	37.897
ok (redirected)	1 999 341	34.245
network or protocol error	798 231	13.672
timeout	412 759	7.070
hostname not found	166 623	2.854
page not found (404/410)	110 241	1.888
forbidden (403)	75 054	1.286
service unavailable (503)	18 648	.319
server error (500)	15 150	.259
bad request (400)	14 397	.247
authentication required (401)	9 199	.158
redirection loop	2 972	.051
proxy error (502/504/52x)	1 845	.032
other HTTP response	1 010	.017
crawler failure	329	.006
syntactically invalid URL	19	.000

Sorry about the non-tabular figures.