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:
| Date | Opponent | Score | Loss | Attendance | Record |
| --- | --- | --- | --- | --- | --- |
| July 1 | @ Chicago Cubs | 4-3 | Prior (5-2) | 38973.0 | 48-31 |
| July 2 | @ Chicago Cubs | 4-2 | Williams (1-3) | 40488.0 | 49-31 |
| July 3 | @ Chicago Cubs | 5-4 (12) | Mitre (2-4) | 40006.0 | 50-31 |
| July 4 | New York Mets | 2-5 | Kim (1-1) | 44331.0 | 50-32 |
| July 5 | New York Mets | 3-2 | Martínez (9-3) | 35087.0 | 51-32 |
| July 6 | New York Mets | 3-5 | Hernández (12-3) | 38148.0 | 51-33 |
| July 7 | New York Mets | 2-3 (11) | Ayala (7-5) | 44492.0 | 51-34 |
| July 8 | @ Philadelphia Phillies | 8-7 | Tejeda (3-2) | 44688.0 | 52-34 |
| July 9 | @ Philadelphia Phillies | 0-1 | Carrasco (3-2) | 33365.0 | 52-35 |
| July 10 | @ Philadelphia Phillies | 4-5 (12) | Kim (1-2) | 34124.0 | 52-36 |
| July 14 | @ Milwaukee Brewers | 2-4 | Majewski (2-1) | 30611.0 | 52-37 |
| July 15 | @ Milwaukee Brewers | 3-4 (10) | Ayala (7-6) | 40690.0 | 52-38 |
| July 16 | @ Milwaukee Brewers | 5-3 | Bottalico (2-2) | 45079.0 | 53-38 |
| July 17 | @ Milwaukee Brewers | 3-5 | Drese (7-8) | 23543.0 | 53-39 |
| July 18 | Colorado Rockies | 4-5 | Cordero (2-2) | 30165.0 | 53-40 |
| July 19 | Colorado Rockies | 4-0 | Chacón (1-6) | 30655.0 | 54-40 |
| July 20 | Colorado Rockies | 2-3 | Hernández (12-4) | 32381.0 | 54-41 |
| July 21 | Houston Astros | 2-3 | Loaiza (6-6) | 36840.0 | 54-42 |
| July 22 | Houston Astros | 1-14 | Drese (7-9) | 38019.0 | 54-43 |
| July 23 | Houston Astros | 4-2 | Backe (8-7) | 42680.0 | 55-43 |
| July 24 | Houston Astros | 1-4 (14) | Carrasco (3-3) | 39203.0 | 55-44 |
| July 26 | @ Atlanta Braves | 2-3 (10) | Stanton (1-3) | 43308.0 | 55-45 |
| July 27 | @ Atlanta Braves | 3-4 | Majewski (2-2) | 40625.0 | 55-46 |
| July 28 | @ Atlanta Braves | 4-5 | Drese (7-10) | 40269.0 | 55-47 |
| July 29 | @ Florida Marlins | 3-4 | Armas (5-5) | 29322.0 | 55-48 |
| July 30 | @ Florida Marlins | 0-3 | Patterson (4-3) | 25308.0 | 55-49 |
| July 31 | @ Florida Marlins | 4-2 | Moehler (6-8) | 30397.0 | 56-49 |
Question:
What was the average attendance when the New York Mets were opponents with a record of 51-33?
Answer:
38148.0