Given the task definition and input, reply with output. This task involves creating answers to complex questions, from a given passage. Answering these questions, typically involve understanding multiple sentences. Make sure that your answer has the same type as the "answer type" mentioned in input. The provided "answer type" can be of any of the following types: "span", "date", "number". A "span" answer is a continuous phrase taken directly from the passage or question. You can directly copy-paste the text from the passage or the question for span type answers. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words. A "number" type answer can include a digit specifying an actual value. For "date" type answers, use DD MM YYYY format e.g. 11 Jan 1992. If full date is not available in the passage you can write partial date such as 1992 or Jan 1992. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words.

Passage: As in their previous match this year, the Ravens scored first with an 18-yard field goal by kicker Billy Cundiff, the only points scored in the first quarter by either team. Steelers kicker Shaun Suisham answered with a 36-yard field goal early in the second quarter, and a 30-yard field goal near the end, but both of these were quickly matched by Baltimore's Cundiff with a 43-yard and 51-yard field goal, respectively, giving Baltimore a 9-6 lead at halftime. The Ravens then increased their lead in the third quarter when Ray Rice scored the first touchdown of the game on a 4-yard run. The Steelers rallied in the fourth quarter, with running back Rashard Mendenhall making a 1-yard run to score a touchdown, and then taking the lead for the first time in the game when quarterback Ben Roethlisberger hit Mike Wallace in the endzone with a 25-yard pass for a second touchdown. In the game's final minutes the Ravens began a 92-yard drive, culminating in a 26-yard touchdown pass by quarterback Joe Flacco to wide receiver Torrey Smith leaving 8 seconds on the clock improving the Ravens record to 6-2.
Question: How many field goals did Billy Cundiff score in the first quarter?
Answer type: Number
1.