whats rong with blogspot?

hi every1,
i jst waana ask a question about blogspot stats..

Its showing

Pageviews yesterday: 523

United States = 174
Russia = 98
United Arab Emirates = 74
India = 36
Indonesia = 27
Germany = 22
Belarus = 18
South Korea = 17
Bolivia = 17
Australia = 3


But when i am checking "Monetize" tab its showing only:

Page impressions = 197
Clicks = 7
Earnings = 2.54

now my question is that with 523 Pageviews why it is showing only 197 impressions?

The rest of the pageviews were probably from spiders or browsers with javascript disabled.

probably spiders. I have same problems.

i think the blogspot does not count the google Public Service Ads