Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Season no. | Title | Directed by | Written by | Original air date | Production code | U.S. Viewers (millions) |
| --- | --- | --- | --- | --- | --- | --- |
| 1.0 | " One " | Jean de Segonzac | Teleplay by: Rene Balcer Story by: Dick Wolf | September30,2001 | E2101 | 12.80 |
| 2.0 | "Art" | David Platt | Elizabeth M. Cosin | October7,2001 | E2110 | 11.30 |
| 3.0 | "Smothered" | Michael Fields | Marlane Gomard Meyer | October14,2001 | E2111 | 14.50 |
| 4.0 | "The Faithful" | Constantine Makris | Stephanie Sengupta | October17,2001 | E2104 | 19.30 |
| 6.0 | "The Extra Man" | Jean de Segonzac | Marlane Gomard Meyer | October28,2001 | E2106 | 12.60 |
| 7.0 | "Poison" | Gloria Muzio | Stephanie Sengupta | November11,2001 | E2108 | 11.80 |
| 8.0 | "The Pardoner's Tale" | Steve Shill | Theresa Rebeck | November18,2001 | E2112 | 12.80 |
| 9.0 | " The Good Doctor " | Constantine Makris | Geoffrey Neigher | November25,2001 | E2103 | 14.00 |
| 10.0 | "Enemy Within" | John David Coles | David Black | December9,2001 | E2107 | 10.80 |
| 11.0 | "The Third Horseman" | Constantine Makris | René Balcer | January6,2002 | E2115 | 12.30 |
| 12.0 | "Crazy" | Steve Shill | René Balcer | January13,2002 | E2102 | 13.30 |
| 13.0 | "The Insider" | Jan Egleson | Elizabeth M. Cosin | January27,2002 | E2105 | 13.00 |
| 14.0 | "Homo Homini Lupis" | David Platt | René Balcer | March3,2002 | E2113 | 11.60 |
Question:
What was the number of season number entries that had US Viewers of 12.30 million?
Answer:
1.0