The following table contains data on market advances and declines.

Market Advances and Declines
Day	Advances (in millions)	Declines (in millions)
1	913	701
2	659	988
3	707	796
4	501	975
5	504	1,061
6	961	717
7	1,010	621
8	910	727
9	857	737
10	773	773

a. If the trading volume in advancing shares on day 1 was 1.8 billion shares, while the volume in declining issues was 1.5 billion shares, what was the trin statistic for that day