In a recent experiment, a group of students measured the growth of a sunflower plant over a period of 5 weeks. The data collected showed the following heights (in centimeters) each week:
Week 1: 10 cm
Week 2: 15 cm
Week 3: 20 cm
Week 4: 25 cm
Week 5: 30 cm
Based on the data presented, what can be inferred about the sunflower's growth pattern over the 5 weeks?