2018年にヨーロッパの宇宙打ち上げ数が減少したのはなぜですか？

There is a table of space launches from wikipedia in 2018 (Images have been updated on
July 11, 2018): For now about half of year has
been passed, but share of ESA launches is comparable with share of
New Zealand.
For comparison, in 2017 it was 9 European space launches.
I look a list of ESA launches for 2018. There are
2-4 launches with european launch-vehicle remaind for this year.
What is going on with european space program?

@コメントする。 リンク付きで古い統計を見つけることは可能です

https://en.wikipedia.org/wiki/2018_in_spaceflight#By_country

あなたはこのリンクで年を変える必要があります。