Here is the biggest reason for the difference:

 107   1997813    bb11ba91dd4ee07a1a43aac7d04a4c0ad7e44aca comment_reward       {"author":"nomoreheroes7","permlink":"will-bitshares-breathe-again","originating_author":"blocktrades","originating_permlink":"re-nomoreheroes7-will-bitshares-breathe-again-20160517t173925011z","payout":"272.027 SBD","vesting_payout":"4252083.636280 VESTS"}

This comment by @blocktrades has earned a lot of money. Half of the content rewards for that comment gets distributed to the authors of its parent posts, which in this case is you.

My June 2 snapshot post only showed content rewards you received for your own top-level posts. I didn't show the other list of other rewards you would receive. For example, using the June 2 data, If you count all the rewards you would receive, you get 304.724 SMD and 4.763551389084 million SP.