On average, yes. Rather ironically though, the last 3 blocks in your screenshot: 15mins, 2mins, 6mins.

Wait! nostr:nevent1qqs0g7pqy6xgsavcvywsglcvjg580ey7utdhuku99wxaeu9nft3sfpgpz3mhxue69uhkummnw3ezummcw3ezuer9wcq3qamnwvaz7tmwdaehgu3wwa5kuegpz3mhxue69uhhyetvv9ujumn0wd68ytnzvuq3wamnwvaz7tmjv4kxz7fwwpkx2cnnw3ezucm0d58r9fhr

I audit all the time with my Knots nodes.