Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
3.4 ±1.5 2.8 ±1.7 2.7 ±1.8 2.1 ±1.4 2.5 ±1.6 1.6 ±1.3 1.5 ±1.5 2.0 ±0.9 2.2 ±1.3 3.2 ±1.6 3.3 ±1.7 3.1 ±2.2